 | AC-813 Duracraft Humidifier Replacement Filter (2 Pack) Brand: Duracraft Part Number: UFD13C=UDC Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$5.75 |
 | AC-813 Humidifier Filter Brand: Duracraft Part Number: AC-813 AC-813 Humidifier Filter | *$5.95 |
 | AC-814 Duracraft Humidifier Replacement Filter Brand: Duracraft Part Number: UFD14C=UDC Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$3.75 |
 | AC-814 Humidifier Filter Brand: Duracraft Part Number: AC-814 AC-814 Humidifier Filter | *$7.99 |
 | AC-815 Duracraft Humidifier Replacement Filter Brand: Duracraft Part Number: UFD09C=UDC=2 Patented rigid support long lasting design. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$5.99 |
 | AC-818 Duracraft Humidifier Replacement Filter (3 Pack) Brand: Duracraft Part Number: UFD19C=UDC=2 Patented rigid support long lasting design. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$9.85 |
 | AC-818 Humidifier Filter Brand: Duracraft Part Number: AC-818 AC-818 Humidifier Filter | *$10.99 |
 | AC-819 Duracraft Humidifier Replacement Filter (3 Pack) Brand: Duracraft Part Number: UFD19C=UDC Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$8.88 |
 | AC-888 Duracraft Humidifier Replacement Filter Brand: Duracraft Part Number: UFH64C=UDC Patented rigid support long lasting design. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$7.75 |
 | AC-888 Humidifier Filter Brand: Honeywell Part Number: AC-888 AC-888 Humidifier Filter | *$9.99 |
 | Acai Powerscoop 90 Gram Sambazon Brand: Sambazon Model: SAMB-00022 Part Number: 724252 Rich Source of AntioxidantsBoosts Energy and Immune SystemPromotes Healthy Skin Discover the Amazon Superfood Acai (ah-sigh-ee) is a small purple berry from the Brazilian Amazon that has been found to be one of the most nutritious and powerful foods on the planet - jam packed with antioxidants, healthy omega fats, amino acids and dietary fiber. PowerScoop is the first organic acai whole food drink powder - which, unlike extracts, completely captures the unique synergy of health benefits found in this miraculous little fruit. The National Research Council recommends 5 servings of fruits and vegetables per day. One scoop of PowerScoop is equivalent to over 3 servings and is a great way to supplement your healthy diet. | *$17.99 |
 | Ace Screen/Storm Replacement Latch (01-3899-213) Brand: Ace Trading Bhdw 1 Model: 01-3899-213 Part Number: 01-3899-213 Sold as each. Inside latch. Replacement for inside of all push button latches. Metal spindle. White. References National no. 268-557 Clamshell. Manufacturer number: 01-3899-213. SKU #: 5414792. Country of origin: China. Distributed by Ace Trading Bhdw 1. | *$6.99 |
 | Ace Screen/Storm Replacement Latch (01-3899-217) Brand: Ace Trading Bhdw 1 Model: 01-3899-217 Part Number: 01-3899-217 Sold as each. Inside latch. Replacement for inside of all push button latches. Metal spindle. Aluminum. References National no. 268-573 Clamshell. Manufacturer number: 01-3899-217. SKU #: 5414818. Country of origin: China. Distributed by Ace Trading Bhdw 1. | *$6.99 |
 | ACR-832 Robitussin Humidifier Replacement Filter Brand: Robitussin Part Number: UFD13C=URN Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$4.85 |
 | AD-1 Lobb Humidifier Replacement Filter Brand: Lobb Part Number: UF8115=ULB=3 For optimum performance replace filter twice a season. | *$7.99 |
 | ADAPTER,DCK STATN,MOBILE (IVR37700DTOP); Brand: Innovera® Part Number: IVR37700 Convenient device connects three USB and two PS/2 peripherals to your computer. Compact size makes it ideal for travel. LED indicator lights provide status at a glance. Self-powered design does not require an AC adapter. USB cable included. For Use With: USB 1.1 and PS/2 Peripherals; Global Product Type: Docking Stations; Operating System Compatibility: N/A; Connector/Port/Interface: 2 PS/2; 3 USB. Also search for: Cable;Computer Peripherals;INNOVERA;Mobile Docking Station Quantity: 1 EA. | *$36.66 |
 | Adorable Humidifier - Animals - Cow Brand: Crane Model: EE4140 Part Number: EE-4140 Help improve your child's health with the Adorable Cool Mist Humidifier from Crane. Colorful, fun animal shapes match any nursery decor and make a healthy companion for you little one! Features: Child friendly designs Supports easy breathing - instant relief from year round heating and cooling Variable humidity control Whisper quiet operation 1 gallon tank for up to 11 hours running time Up to 2.1 gallon moist output per day Removable water tank for easy carry and refill Auto-shut off when tank is empty Low power consumption 120 volts, 60 Hz, 36 watts Humidifiers help to decrease the levels of dryness in the air dramatically, and enable you and your child to enjoy improved health, improved quality of air, and even an improved home interior. They have been proven to cut the levels of dust and bacteria within the home, helping to eliminate health issues and allergies. Featured on ABC News, NBC News and HGTV Shipping Note: This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO boxes, US territories, or APO/FPO addresses. | *$34.99 |
 | Adorable Humidifier - Animals - Panda Brand: CRANE Model: EE-3189 Part Number: EE-3189 Help improve your child's health with the Adorable Cool Mist Humidifier from Crane. Colorful, fun animal shapes match any nursery decor and make a healthy companion for you little one! Features: Child friendly designs Supports easy breathing - instant relief from year round heating and cooling Variable humidity control Whisper quiet operation 1 gallon tank for up to 11 hours running time Up to 2.1 gallon moist output per day Removable water tank for easy carry and refill Auto-shut off when tank is empty Low power consumption 120 volts, 60 Hz, 36 watts Humidifiers help to decrease the levels of dryness in the air dramatically, and enable you and your child to enjoy improved health, improved quality of air, and even an improved home interior. They have been proven to cut the levels of dust and bacteria within the home, helping to eliminate health issues and allergies. Featured on ABC News, NBC News and HGTV | *$34.99 |
 | Aftermarket Filters for Bionaire Humidifiers BWF100 (3-Pack) Brand: Best Value Microban anti-microbial protection is built-in to inhibit the growth of bacteria, mold and mildew that cause odors & stains. Filtered with Arm & Hammer Baking Soda to Absorb & Eliminate household odors! | *$12.95 |
 | Aftermarket Replacement Pads (2-Pack) for American Red Cross Cool Mist Humidifier - The First Years Learning Curve Brand: Bulk Buy Pre-cut replacement filters for the American Red Cross Cool Mist Humidifier by Learning Curve. Fits Humidifier Model Y7087. | *$8.99 |
 | AGW-835 Robitussin Humidifier Aftermarket Replacement Filter Brand: Robitussin Part Number: UFHAC504AM=URN Patented rigid support extended life design. Aftermarket replacement filter. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. | *$6.49 |
 | AGW-835 Robitussin Humidifier Replacement Filter Brand: Robitussin Part Number: UFHAC504=URN Patented rigid support extended life design. For optimum performance replace filter at the beginning of each season or every 2 months depending on use. See below for a low cost alternative. | *$8.99 |
 | AH82-4 Amoco Humidifier Replacement Filter Brand: Amoco Part Number: UFPB1=UAO | *$10.99 |
 | Air Vent Humidifier - Replacement Wicks Brand: Gaiam Part Number: 01-9533 Counteract the effects of forced air heat with this energy-smart solution that works without using extra electricity. Simply slip it into your heat register and fill with water daily. Rising hot air draws moisture with it to silently and automatically humidify the room.Replacement wicks (set of 2) available separately. Imported. | *$15.00 |
 | AIR-O-SWISS 2055 Ionizing Air Washer & Humidifier Brand: PLASTON INTERNATIONAL CORP Model: 30138 Part Number: 30138 2 In 1 Air Purifier & Humidifier From Air-O-Swiss, No Expensive Filters To Replace, Cleans The Air Of Particles Smaller Than 1.5 Microns, Ionic Silver Stick Prevents Microbial Growth, Detachable Water Tank For Easy Refilling, Suitable For Rooms Up To 600 SQFT, MAP Price $259.99. | *Too low to display |
 | AIR-O-SWISS 2055 Ionizing Air Washer & Humidifier Brand: Air-O-Swiss Model: 30138 Part Number: 2055 | *$249.00 |
 | AIR-O-SWISS 7142 Digital Warm & Cool Mist Ultrasonic Brand: Plaston International Corp. Model: 32838 Part Number: 774754 Humidification System This digital ultrasonic humidifier uses high-frequency vibrations to turn water into a micro-fine mist when blown into a room immediately evaporates. Choose the pre-heating function and mist exits the appliance at a pleasant 104 °F. «ITCTM» technology (Intelligent Temperature Compensation) monitors the temperature and automatically adjusts the output when conditions change. A replaceable demineralization (Ag+ Ionic Silver Technology) cartridge ensures water mist with | *Too low to display |
 | Air-O-Swiss Air Washer - White (1355N) Brand: Air-O-Swiss Part Number: AOS1355 | *$189.00 |
 | Air-O-Swiss AIR-O-SWISS 2055D Air Washer / Humidifier Brand: Air-O-Swiss Model: 2055D Part Number: 0032873 The Air-O-Swiss 2055 Air Washer / Humidifier simultaneously cleans and humidifies the air without the use of ordinary wick filters. Inside the air washer, special humidifier discs rotate through a water bath. During this process, the air flowing past the discs is cleaned of contaminants in a natural manner - in the same way that the air is washed clean by rain in nature. Airborne particles and allergens as small as 0.5 microns - such as dust, pollen and household odors - are removed from the air naturally, safely, and quietly. A pre-ionizer charges the air with negative ions, causing the cleaning discs to attract particles more easily, like a magnet. Humidification is performed using the self-regulating cold evaporation principle. This method of humidification is the most natural and healthiest way to add pure moisture to the air, without leaving any white dust or residue from mineral deposits. The Air-O-Swiss 2055 Air Washer is also equipped with a special anti-bacterial protection system (the patented Ionic Silver Stick), which guarantees that the water inside the air washer will be kept free from harmful bacteria and viruses. Two fan speeds allow you to run the air washer at night with minimal noise. Fragrance container for adding scents to the purified and humidified room air Removable transparent water tank with handle for easy handling Built-in power cable storage Dimensions - 14.2 W x 14.2 D x 15.4 H | *Too low to display |
 | Air-O-Swiss AIR-O-SWISS 7145 Ultrasonic Humidifier Brand: Air-O-Swiss Model: 34476 Part Number: 0034476 The Air-O-Swiss Ultrasonic Cool Mist Humidifier 7145 is a high-quality ultrasonic humidifier featuring a premium titanium transducer surface, which uses adjustable high-frequency vibrations to turn water into a micro-fine mist, which is blown into the room to evaporate. Unlike other ultrasonic humidifiers, the Air-O-Swiss titanium transducer surface is much stronger than ordinary metals, resists rust, lasts longer and requires less cleaning. The Air-O-Swiss 7145 features a tri-band microbial protection system which guarantees that the water will be kept free from harmful bacteria and viruses. A replaceable demineralization cartridge (Ag+ Ionic Silver Technology) helps reduce ?white dust" (lime scale and other mineral deposits from the mist output). In addition, the patented Ionic Silver Stick uses aqueous silver ions to control microbial growth for up to one year of continuous use. It is self-regulating and maintenance-free. | *$118.94 |
 | Air-O-Swiss AIR-O-SWISS 7146 Travel Ultrasonic Humidifier Brand: Air-O-Swiss Model: 34480 Part Number: 0034480 The Air-O-Swiss Travel Ultrasonic Cool Mist Humidifier 7146 is a high quality travel-size ultrasonic humidifier which is compact enough to take and use anywhere. The efficient ultrasonic technology uses high-frequency vibrations to generate a micro-fine cool mist, which is blown into the room where it evaporates into the air. Just add your own half-liter water bottle, and plug the unit in anywhere in North America or Europe using the included transcontinental travel AC adapter and exchangeable plugs. Stay healthy and be more productive at home, in your dorm room, or at work. Place the AOS 7146 on your desk, in your office, in your hotel room, or anywhere you need quick and easy added moisture. | *$59.90 |
 | Air-O-Swiss AIR-O-SWISS E2441 Evaporator Humidifier Brand: Air-O-Swiss Model: E2441 Part Number: 0034399 From Air-O-Swiss, the premier maker of high end ultrasonic humidifiers and air washers, comes the Air-O-Swiss Evaporator AOS E-2441 Humidifier - an evaporative humidifier that combines form and function for an unbelievably simple operation in a modern and attractive sleek design. The E2441 can be easily filled from the top using a pitcher or watering can - no bulky, heavy water bottles to carry and fill at the sink or tub. Adding moisture to the air has never been so attractive - or so easy. Quality components with long service life Energy efficient - uses only 24W Ultra quiet operation with 2 fan speeds - one for normal and one for night use Replaceable wick filter AOS-7018 (included) Unit Dimensions - 12.6 W x 12.6 D x 15.7 H; Weight - 8.4 lbs Color - White | *Too low to display |
 | Air-O-Swiss AOS Demineralization Cartridge- 7531 Brand: Air-O-Swiss Model: 30879 Part Number: 30879 Fits 7133 Humidifier | *Too low to display |
 | Air-O-Swiss AOS Ultrasonic Humidifier - 7135 Brand: Air-O-Swiss Model: 32255 Part Number: AOS7135 The Air-O-Swiss Ultrasonic Warm Mist Humidifier uses high-frequency vibration to generate a micro-fine mist. It has a built-in hygrostat and an output regulator button. A replaceable demineralization cartridge ensures a hygienic, pure water mist, without lime scale or mineral residues. When operated with the pre-heating function, the water is heated to 176°F before it enters the nebulizer chamber. The mist exits the humidifier at a comfortable 104°F, so the mist does not cause room temperature to fall. Pre-heating also keeps the water cleaner. The Air-O-Swiss Ultrasonic Warm Mist Humidifier also features Automatic and Sleep modes. Automatic mode maintains ideal humidity you select in relation to room temperature. When the Sleep mode is set, the unit shuts off after eight hours. Powerful & exchangeable demineralization cartridge prevents white dust Built-in hygrostat for controlled humidification Timer Auto & Sleep modes Output regulator button Multi-function LCD display Powerful & exchangeable demineralization cartridge Quiet operation Easy-to-clean & handle Mains voltage - 120 V/60 Hz Power consumption - 40 W (without preheating), 140 W Room coverage - up to 600 sq. ft. Humidification performance - up to 3.5 gallons/24h Water capacity - up to 2 gallons Unit Dimensions - (L x W x H) - 15.2 x 8.8 x 15.4; Weight - 7 lbs (empty) | *$146.07 |
 | Air-O-Swiss AOS-1355N Air Washer Humidifier Brand: Air-O-Swiss Model: 30184 Part Number: AOS1355N As the summer whithers and fades into autumn and winter, home heating systems go on. Most heat systems leave the air very dry. That can affect your respiratory system. Many physicians suggest that using a humidifier may help improve home comfort and health during those frosty months. The Air-O-Swiss is a fine room humidifier that performs quietly, efficiently, and healthfully. The AOS 1355N Air Washer washes and humidifies the air without the use of filters. Special humidifier discs turn constantly through water. This method removes many impurities (e.g. dust, pollen and particle-bound odours) from the air - as in Nature, where the air is washed clean by the rain. The Air Washer works on the self-regulating evaporation principle and thus it requires no additional control systems to ensure optimal air humidity. The AOS 1355N is equipped with a special anti-bacterial protection system. May be used throughout the whole year High quality components with long service life For home and office use Modern design Humidification performance up to 2.4 gallons / 24h Suitable for rooms up to 600 square ft Water capacity 1.9 gallons Weight (empty) 13 Ibs Dimensions 14.9 x 12.6 x 16.7 110-120V AC Powered | *Too low to display |
 | Air-O-Swiss AOS7018 Evaporative Replacement Filter Brand: Air-O-Swiss Model: 7018 Part Number: AOS7018 For AOS E2441 Evaporator / Made of environmentally friendly paper with cotton flocking / Guarantees high humidifying performance | *$19.99 |
 | Air-O-Swiss Ionic Silver Stick - White (7017) Brand: Air-O-Swiss Model: 24776 Part Number: 24776 Ionic Silver Stick, Humidifier Anti-Bacterial Agent, Releases Silver Ions Into Water To Kill Over 650 Types Of Water Bound Bacteria & Viruses, Eliminated Foul Odors Associated With Humidifier Use, Eliminates Need For Harsh Cleansers & Additives, Non-Toxic, Non-Corrosive, Last 1 Full Year, Can Be Used In Non Air-O-Swiss Humidifier As Long As It Does Not Interfere With Mechanical Parts. | *Too low to display |
 | AIR-O-SWISS Replacement Ionic Silver Stick 0024776 Brand: Air-O-Swiss Model: 0024776 Part Number: 0024776 For use with TON 7133 Air-o-Swiss 7133 Humidifier | *$23.00 |
 | Air-O-Swiss Ultrasonic Humidifier Brand: Air-O-Swiss Model: 32838 Part Number: U7142 This efficient Air-O-Swiss Ultrasonic humidifiier uses several cutting edge technologies to achieve an optimum quality of environmental control. High-frequency vibrations generate a micro-fine mist, while an Intelligent Temperature Compensation system (ICS) measures humidity relative to the room temperature and automatically adjusts the output to achieve an optimum balance dynamically as conditions change. The water is kept clean with three separate processes that make up the Microbial Protection System: ultrasonic technology, pre-heating, and Ionic Silver Stick. The latter makes use of the proven anti-microbial qualities of Silver, which has proven effective against more than 650 types of bacteria without any chemical additives. When operated with the pre-heating function, the water is heated to 176 F before it enters the nebulizer chamber. The mist exits the appliance at a comfortable temperature of 104 F. This neutralizes the cooling effect of mist to keep the room temperature from falling, and also keeps the water cleaner. A replaceable demineralization cartridge ensures a hygienic, pure water mist, without lime scale or mineral residues. Exchangeable demineralization cartridge / Quiet operation /Easy to clean and handle Suitable for rooms up to 860 sq. ft. Power consumption - 40W w/o pre-heating, 140W w/ pre-heating / Moisture output - up to 3.5 gallons / 24 hrs Water capacity - 2.0 gallons Dimensions - 9.8 x 11.0 x 17.3 Weight - 8.0 lbs. | *$170.99 |
 | American Red Cross Cool Mist Humidifier Brand: Learning Curve Model: Y7087 Part Number: Y7087 20 hour operation for small/medium room, easy clean design with removeable tank, ultra quiet operation, adjustable mist settings | *$29.99 |
 | Analog Hygrometer by Western Instrument Company Brand: CigarsEtc This 2.25" diameter certified hygrometer includes convenient magnetic mount and calibration screw. A great deal from Western Instrument Co. for low-budget humidors. | *$6.99 |
 | ANCHOR BRAND 620-24OZ "620-PLUS" ANTI-SPATTER - 24 Oz (PACK OF 5) Brand: ANCHOR BRAND Model: 620-24OZ Part Number: 620-24OZ "ANCHOR BRAND " ANTI-SPATTER
Provides protection to M.I.G gun nozzles, contact tips, accessories and all welding zones during single and multi-pass welding. Requires little cleaning prior to painting when applied properly. Non-Flammable, Reduces spatter build-up on M.I.G. Nozzles, prevents spatter adhesion, Heat-resistant to withstand high temperature use, paint compatible, Contains no silicones, no fluorocarbons.
Highlights:
Capacity Vol.: 24 oz
Packing Type: Aerosol Can
Physical Form: Liquid
Type: Anti-Spatter & Nozzle Shiel
PACK OF 5 | *$34.99 |
| | Aprilaire 2410 SpaceGard Media Air Cleaner NEW Brand: Aprilaire Part Number: 2410 <p>The best choice for allergy sufferers. Aprilaire 2210 and 2410 Whole-House Media Air Cleaners deliver the most efficient, cost-effective air cleaning for your home.</p> <p>Equipped with patented filtering media that can give you exceptionally clean air throughout your home - at a very affordable price.</p> <!-- <div id="logo_im"> <img src="themes/aa/en/images/cat_footers/pro ducts_epalogo_small.jpg" alt="EpaLogo"></div> --> <!-- <div id="logo_title"> U.S. Environmental Protection Agency</div> --> <p><b>Which Model is Right For Me?</b> <br> Aprilaire Media Air Cleaners are available for you to choose from depending on your furnace type. All models provide the same superior performance and come with a five-year limited warranty. And, because these models have no moving parts, they produce no ozone and are virtually maintenance-free. Your local heating and cooling contractor can help you determine the right model for your home. You can use the Dealer Locator on this site to find an Aprilaire Dealer in your area.</p> <p><b>Model 2210:</b> is easily adaptable to upflow or horizontal duct configurations.</p> <p><b>Model 2410:</b> is compact, great for use with today's shorter furnaces in platform or closet installations.</p> <p><b>Benefits and Results</b><br> If you have allergies, you need effective whole-house air cleaning. Aprilaire Whole-House Air Cleaning systems p | *$164.99 |
 | Aprilaire 35 Replacement Humidifier Water Pad NEW Brand: Aprilaire Model: 35 Part Number: 35 <p><font size="3" face="times new roman,times,serif">Genuine OEM Aprilaire humidifier evaporator pads (also called humidifier filters) manufactured by Research Products Corporation.. Humidifier pads / filters are one of the important parts of the humidifier. The humidifier pad is what the water flows across that enables evaporation of the water into the home. Replacing the pads once per year ensures that the humidifier evaporates the optimum amount of water to keep your home comfortable. You may consider replacing the humidifier pad more than once per year if you have hard water. Replacing the humidifier pad / filter Aprilaire pads / filters are designed to be easily replaced in Aprilaire furnace humidifiers. Simply by removing the humidifier cover, the pad / filter can be taken out and a new one slid into place. This can be performed by the homeowner in a matter of minutes. See your humidifier instructions for more information. </font></p><p><font size="3" face="times new roman,times,serif">Replacement humidifier pad fits models: 350, 360, 560, 568, 600, 700, 760, 768.</font> </p> | *$9.89 |
 | Aprilaire 360 Thru The Wall Home Humidifier HVAC NEW Brand: Aprilaire Part Number: 360 <table width="100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" colspan="4"><font size="3" face="times new roman,times,serif">This model is designed especially for any residence, condominium, town house, or apartment, regardless of the type of heating system. It is installed through the wall and is completely independent of the heating system. Other items needed for the installation that are not included: 1/4" copper tubing for water line, 1/2" ID plastic tubing for drain, 2-conductor 18 to 22 gauge wire. </font></td></tr><tr><td class="paraheader" colspan="4"><font size="3" face="times new roman,times,serif">Included in the Aprilaire 360 Humidifier Box:</font></td></tr><tr><td colspan="4"><ul><li><font size="3" face="times new roman,times,serif">(1) Aprilaire 360 case </font></li><li><font size="3" face="times new roman,times,serif">(1) Replacement water panel </font></li><li><font size="3" face="times new roman,times,serif">(1) Saddle valve </font></li><li><font size="3" face="times new roman,times,serif">(1) Owner's manual </font></li><li><font size="3" face="times new roman,times,serif">(1) Installation manual </font></li><li><font size="3" face="times new roman,times,serif">(1) Humidistat / Controller </font></li><li><font size="3" face="times new roman,times,serif">(1) Humidistat installation manual </font></li><li><font size="3" face="times new roman,times,serif">(1) Bag of screws </font></li></ul><font size="3" face="times new roma | *$359.99 |
 | Aprilaire 4004 Replacement Humidifier In-Line Strainer Brand: Aprilaire Part Number: 4004 <p><font size="3" face="times new roman,times,serif"><span id="desc_820594707">The In-Line Strainer is a tiny strainer that fits in the inlet fitting of the water solenoid valve which allows water to enter your humidifier or stops the water flow. It is designed to keep debris from entering the solenoid valve and should be checked annually for the build-up of minerals and grit. Replace as necessary. For use with models: 110, 112, 220, 224,</span><span id="fullDesc_820594707" style="display: inline;"> 350, 360, 400, 440, 445, 445A, 448, 550, 550A, 558, 560, 560A, 568, 600, 700, 760, 760A and 768</span></font><span id="more_820594707" style="display: none;">... <a onclick="return switchDesc(820594707);" href="http://shopping.msn.com/reviews/sh p/?itemId=820594707,fulldesc=1">More</sp an></p> | *$3.75 |
 | Aprilaire 4005 Water Solenoid Valve HVAC NEW Brand: Aprilaire Part Number: 4005 <p><font size="3" face="times new roman,times,serif">Replacement Solenoid Valve for Aprilaire Humidifier Models 110 and 112</font> </p> | *$63.80 |
 | Aprilaire 4217 Replacement Humidifier Scale Insert NEW Brand: Aprilaire Part Number: 4217 <p><font size="3" face="times new roman,times,serif">Scale Control Insert for Aprilaire Humidifier Models 550, 550A & 558.</font> </p><p><font face="times new roman,times,serif"><font size="3">This is the u-shaped component which encases the Water Panel Evaporator. Their purpose is to direct any mineral which builds up back into the evaporative panel. They prevent water from leaving the evaporative section and entering another portion of the humidifier. <br />For use with models: 550, 550A & 558</font> </font></p> | *$23.64 |
 | Aprilaire 4218 Replacement Water Distribution Tray NEW Brand: Aprilaire Part Number: 4218 <p><font size="3" face="times new roman,times,serif">Replacement Water Distribution Tray for Aprilaire 558, 550 </font></p><ul><li><p><font size="3" face="times new roman,times,serif">U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel. </font></p></li><li><p><font size="3" face="times new roman,times,serif">Replace as needed</font></p></li></ul> | *$21.45 |
 | Aprilaire 4223 Replacement Humidifier Drain Spud NEW Brand: Aprilaire Part Number: 4223 <p><font size="3" face="times new roman,times,serif">This is the plactic fitting which attaches to the base of the housing of your humidifier. It is designed to allow for the connection of the 1/2" drain hose. For use with models: 550, 558, 560, 560A & 600</font></p> | *$8.39 |