SOME OF OUR FILTER CUSTOMERS ARE:   STATE AND FEDERAL GOVERNMENT, HOMEOWNERS, HOSPITALS, SCHOOLS, POWER COMPANIES....GO TO YOUR APRILAIRE FILTER MODEL NUMBER

FEATURED ITEM! Warns of water leaks....Drop one under the sink, next to the water heater, behind the toilet, or anywhere you might get a water leak. No wiring required.   Find Out More....
	The Clean Air Filter Gage for Heating and Air Conditioning Systems Saves You Money On Air Filters Saves You Money On Electric Bills Saves You Money On Costly Air Conditioning Repairs Find Out More....

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FREE DELIVERY TO YOUR HOME OR OFFICE
We do not surprise you with extravagant shipping charges after you fill out the Order Form, and we DO NOT charge extra for shipping damage insurance!  

Original "Genuine" Design Aprilaire Filter Replacements for Model 2200 and 2400, #201 and #401. Please, scroll down to the section labeled "Original Design". APRILAIRE FILTER REPLACEMENT Just snap it in, and you're on your way. PRE-ASSEMBLED APRILAIRE FILTER REPLACEMENTS!... WE HAVE THE NEW MERV 13, THE HIGHEST EFFICIENCY RATING YOU CAN GET BUT...... If you prefer the original Aprilaire accordion type design, We have those too. For Models 2200, 2250, and 2400, just scroll down to the section labeled "Original Design". The meaning of MERV? The original design is harder to install because you have to assemble it yourself.  So, why mess around with plastic flanges, pleat spacers, holding brackets or cardboard flaps, when you can have these easy-to-install Pre-Assembled Aprilaire filter replacements.  Just drop it into the sub-housing, and you're on your way.  FREE DELIVERY TO YOUR HOME OR OFFICE And "Must See".....  Triple Guarantee!

"I have been an Air Conditioning Contractor for over 30 years, and I recommend the MERV 13 Pre-Assembled replacements filters for your Aprilaire air cleaner.  With the MERV 13 Pre-Assembled filters you'll breathe cleaner, healthier air, and you'll really love how easy it is to install.   J & B Air Conditioning and Electrical Contractors IMPORTANT NOTE:  Model 2200/2250 and 2400 can be ordered pre-assembled as shown on the image to the left.   PRE-ASSEMBLED FILTERS FOR APRILAIRE  AIR CLEANER UNITS ARE A LOT EASIER TO INSTALL.  LOOK: Aprilaire Filters Note: Research Products does not offer Pre-assembled filters for the 2200 and 2400.

CANADA:  THIS SITE IS FOR USA CUSTOMERS ONLY

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MERV 8, MERV 11, MERV 13 & ODOR DEFENSE OVERSTOCK MADNESS SALE This special cannot be used with other offers Pre-assembled Replacement Filters For Aprilaire Fits Model 2200/2250 - Filter #201 / DPFS20X25X6 NOT TO BE USED WITH MODEL 2120 Nominal size 20" x 25" x 6" box type filter. Actual size (H) 19 3/4" x (W) 24 1/4" x (D) 6 3/8" You won't find a lower price, but if you do, we'll meet our competitor's price and beat their price by $3.00.    See how easy this guarantee works    FREE DELIVERY TO YOUR HOME OR OFFICE We do not surprise you with extravagant shipping charges after you fill the Order Form! What is MERV?....The meaning of MERV? A MERV 13 filter is more than twice as efficient as a MERV 8 in removing contaminants 1 micron in size.  To understand how small 1 micron is, a human hair measures 100 microns. The MERV 8,  MERV 11, and MERV 13 fit the same housing. Note:  Some of the  images of these filters are used for illustration only.   The color of your filter may be white, yellow, or some other color.  The color does not indicate the MERV rating.   The filter may, or may not have the black filler strips depending on the brand. Also, your specific filter may look different than these images.   Filter Installation Instructions Beware!  18% to 35% of people order the wrong size filter.  Many brands come in 20x25x6 but are all different. Make Sure you choose the right brand!  Please, triple check your order. We offer discounts when you order 4-Packs, 6-Packs, or 12-packs, but if you want a different quantity, just "Raise" the quantity in the shopping cart. The new MERV 13 has the highest efficiency you can get. MERV 13 (Model 2200 - Filter #201) Click, How to order the right size. These filters are: Nominal size =  20 x 25 x 6 Actual size (19 3/4" x 24 1/4" x 6 3/8") 2-Pack.........$34.95 each [ORDER] Order 4, Save $8.00 4-Pack.........$32.95 each [ORDER] Order 6, Save $18.00 6-Pack.........$31.95 each [ORDER] 12-Pack.......$30.95 each [ORDER] Shipping Included MERV 11 (Model 2200 - Filter #201) Click, How to order the right size. These filters are: Nominal size =  20 x 25 x 6 Actual size (19 3/4" x 24 1/4" x 6 3/8") 2-Pack.........$29.95 each [ORDER] Order 4, Save $8.00 4-Pack.........$27.95 each [ORDER] Order 6, Save $18.00 6-Pack.........$26.95 each [ORDER] 12-Pack.......$25.95 each [ORDER] Shipping Included MERV 8 (Model 2200 - Filter #201) Click, How to order the right size. These filters are: Nominal size =  20 x 25 x 6 Actual size (19 3/4" x 24 1/4" x 6 3/8") 2-Pack.........$27.95 each [ORDER] Special..Only $24.95, Shipping Included 4-Pack.........$24.95 each [ORDER] 6-Pack.........$24.95 each [ORDER] 12-Pack.......$24.95 each [ORDER]   Limited Time Offer Odor Defense (click) (Model 2200 - Filter #201) Click, How to order the right size. These filters are: Nominal size =  20 x 25 x 6 Actual size (19 3/4" x 24 1/4" x 6 3/8") 2-Pack.........$38.95 each [ORDER] 4-Pack.........$35.95 each [ORDER] 6-Pack.........$34.95 each [ORDER] 12-Pack.......$33.95 each [ORDER] Shipping Included This special cannot be used with other offers Questions?........Email us for quick answers

MERV 11 and MERV 13 This special cannot be used with other offers Pre-assembled Aprilaire Replacement Filters Fits Model 2400 - Filter #401 -  DPFS16X28X6 NOT TO BE USED WITH MODEL 2140   (by name only) 16" x 28" x 6" box type filter. Actual size (H) 15 3/8" x (W) 26 15/16" x (D) 6" You won't find a lower price, but if you do, we'll meet our competitor's price and beat their price by $3.00.    See how easy this guarantee works    FREE DELIVERY TO YOUR HOME OR OFFICE We do not surprise you with extravagant shipping charges after you fill the Order Form! What is MERV?....The meaning of MERV? A MERV 13 filter is more than twice as efficient as a MERV 8 in removing contaminants 1 micron in size.  To understand how small 1 micron is, a human hair measures 100 microns. The MERV 8,  MERV 11, and MERV 13 fit the same housing. Note:  This image is for illustration only.   The color of your filter may be white, yellow, or some other color.  The color does not indicate the MERV rating.  Also, the filter may, or may not have the black filler strips depending on the brand.   Filter Installation Instructions Beware!  18% to 35% of people order the wrong size filter.  Many brands come in 16x28x6 but are all different. Make Sure you choose the right brand!  Please, triple check your order. We offer discounts when you order 4-Packs, 6-Packs, or 12-packs, but if you want a different quantity, just "Raise" the quantity in the shopping cart. The new MERV 13 has the highest efficiency you can get. MERV 13 (Model 2400 - Filter #401) Click, How to order the right size. These filters are: Nominal size =  16 x 28 x 6 Actual size (15 3/8" x 26 15/16" x 6 ") 2-Pack.........$35.95 each [ORDER] Order 4, Save $8.00 4-Pack.........$33.95 each [ORDER] Order 6, Save $18.00 6-Pack.........$32.95 each [ORDER] 12-Pack.......$31.95 each [ORDER] Shipping Included MERV 11 (Model 2400 - Filter #401) Click, How to order the right size. These filters are: Nominal size =  16 x 28 x 6 Actual size (15 3/8" x 26 15/16" x 6 ") 2-Pack.........$32.95 each [ORDER] Order 4, Save $8.00 4-Pack.........$30.95 each [ORDER] Order 6, Save $18.00 6-Pack.........$29.95 each [ORDER] 12-Pack.......$28.95 each [ORDER] Shipping Included This special cannot be used with other offers Questions?........Email us for quick answers

Fits Research Products Model No. 2275 (Part #275) RF275=DSG
Measures approximately 10 3/4" x10 3/4" x 4"

GENUINE APRILAIRE  -  

Single..........$28.95 each   [ORDER]
3-Pack........$20.95 each   [ORDER]
6-Pack........$19.95 each   [ORDER]

FREE DELIVERY TO YOUR HOME OR OFFICE
We do not surprise you with extravagant shipping charges after you fill the Order Form!

Shipping             Triple Guarantee!           We Meet Any Price, and more

Shipping             Triple Guarantee!           We Meet Any Price, and more

Fits Research Products Model No. 5000 (Part #501)

We'll meet our competitor's price and beat their price
by $3.00.    See how easy this guarantee works  

GENUINE APRILAIRE  -  

Single..........$37.95 each   [ORDER]
3-Pack........$32.95 each   [ORDER]
6-Pack........$31.95 each   [ORDER]

FREE DELIVERY TO YOUR HOME OR OFFICE
We do not surprise you with extravagant shipping charges after you fill the Order Form!

PLEAT SPACERS (4270 )
5000 Requires 6
6-Spacers........$69.95  [ORDER]

Aprilaire Seal Kit For 2200 Fits Aprilaire Model No. 2200 (Part #4725) Universal Seal Kit for 2200 Air Cleaner (Previously Part #4233) The Seal Kit for this door is different from the seal kit required for the other door, so be sure to know the appearance of your door before ordering.  Please compare with the other 2200 Seal Kits on this page. Use the #4725 Seal Kit if the air cleaner door looks as pictured at left. 1 Kit..........$34.95 each   [ORDER] FREE DELIVERY TO YOUR HOME OR OFFICE

Aprilaire Seal Kit For 2400 Fits Aprilaire Model No. 2400 (Part #4724) Universal Seal Kit for 2400 Air Cleaner (Previously Part #4274) The Seal Kit for this door is different from the seal kit required for the other door, so be sure to know the appearance of your door before ordering.  Please compare with the other 2400 Seal Kit on this page. 1 Kit..........$34.95 each   [ORDER] FREE DELIVERY TO YOUR HOME OR OFFICE

Aprilaire Seal Kit For 2400 Fits Aprilaire Model No. 2400 (Part #4348) The Seal Kit for this door is different from the seal kit required for the other door, so be sure to know the appearance of your door before ordering.   Please compare with the other 2400 Seal Kit on this page. Order this Seal Kit if the air cleaner door looks like the image to the left. 1 Kit..........$34.95 each   [ORDER] FREE DELIVERY TO YOUR HOME OR OFFICE

Aprilaire 1213 Upgrade kit for models 2200 and 2120. Not for use with model 2250. The upgrade kit Converts your Aprilaire unit from MERV 10 to MERV 13.  The meaning of MERV? This conversion upgrade kit requires that you build a sheet metal frame (provided in kit).  The sheet metal has sharp edges so if you are not accustomed to working with sheet metal, you must be extremely careful.   An alternative to this upgrade kit is to use our Pre-assembled MERV 13 box filter.  Our MERV 13 Pre-assembled filter fits right into your existing plastic sub-housing.  Just drop it in and you're done!   In addition, our MERV 13 Pre-assembled filter is substantially less expensive than the filter that goes in the upgrade kit frame.  So, you will spend less on replacement filters in the coming years. 1 Upgrade Kit..........$89.95 each   [ORDER] FREE DELIVERY TO YOUR HOME OR OFFICE

Shipping             Triple Guarantee!           We Meet Any Price, and more

Aprilaire 1413 Upgrade kit for models 2400 and 2140. The upgrade kit Converts your Aprilaire unit from MERV 10 to MERV 13.  The meaning of MERV? This conversion upgrade kit requires that you build a sheet metal frame (provided in kit).  The sheet metal has sharp edges so if you are not accustomed to working with sheet metal, you must be extremely careful.   An alternative to this upgrade kit is to use our Pre-assembled MERV 13 box filter.  Our MERV 13 Pre-assembled filter fits right into your existing plastic sub-housing.  Just drop it in and you're done!   In addition, our MERV 13 Pre-assembled filter is substantially less expensive than the filter that goes in the upgrade kit frame.  So, you will spend less on replacement filters in the coming years. 1 Upgrade Kit..........$89.95 each   [ORDER] FREE DELIVERY TO YOUR HOME OR OFFICE

Fits Aprilaire Model No. 2140 (Part #104) Nominal size 15.75" x 27.63" x 3.50" box type filter. Actual size (H) 15 3/4" x (W) 27 5/8" x (D) 3 3/4". MERV 13 - Price Per Filter 2-Pack......$30.95 each  [ORDER] 4-Pack......$29.95 each  [ORDER] 6-Pack......$28.95 each  [ORDER] 12-Pack....$27.95 each  [ORDER] MERV 11 - Price Per Filter 2-Pack......$29.95 each [ORDER] 4-Pack......$28.95 each  [ORDER] 6-Pack......$27.95 each  [ORDER] 12-Pack.....$26.95 each  [ORDER] WE BEAT ANY PRICE....See How Easy It Is FREE DELIVERY TO YOUR HOME OR OFFICE

Fits Aprilaire/Space-Gard Model No. 2120 (Part #102) Nominal size 20" x 25.25" x 3.50" box type filter. Actual size (H) 20 " x (W) 25 1/4" x (D) 3 3/4". MERV 13 - Price Per Filter 2-Pack......$30.95 each  [ORDER] 4-Pack......$29.95 each  [ORDER] 6-Pack......$28.95 each  [ORDER] 12-Pack....$27.95 each  [ORDER] MERV 11 - Price Per Filter 2-Pack......$29.95 each [ORDER] 4-Pack......$28.95 each  [ORDER] 6-Pack......$27.95 each  [ORDER] 12-Pack.....$26.95 each  [ORDER] WE BEAT ANY PRICE....See How Easy It Is FREE DELIVERY TO YOUR HOME OR OFFICE

Shipping             Triple Guarantee!           We Meet Any Price, and more