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Aprilaire entered the indoor air quality industry in 1938. Less than two decades later, they produced the first marketed, whole-home, evaporative humidifier in the United States. Since that time, they have expanded their product line to include not only humidifiers, but also air cleaners, dehumidifiers, thermostats, ventilation and zone control systems.

The company's focus has always been to design, create and manufacture top level products to help improve indoor air quality. Commitment to discovering new, innovative ways to establish healthy indoor environments, whether in homes or businesses has contributed to Aprilaire remaining a leader in the HVAC industry.

When it is time to replace the filters on your Aprilaire products, such as humidifiers and air cleaners, make sure you choose genuine Aprilaire replacement filters and parts.


Aprilaire filters full product list:


BestAir A12PR Replacement for Aprilaire 12 Humidifier Filter
(A12PR)

The BestAir A12PR Humidifier Water Panel Evaporator Replacement is a heavy-duty metal water pad for several AprilAire, Chippewa and Walton humidifier models.


In stock! Ships in 1 business day.
BestAir A12PR Replacement for Aprilaire 12 Humidifier Filter
As Low As: $10.95
Retail: $14.99
You Save 27%!

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Aprilaire 4004 Humidifier Inline Strainer
(Aprilaire 4004)

This is an Aprilaire 4004 Humidifier Inline Strainer replacement that is a humidifier replacement component used in all Aprilaire humidifier models except for commercial units and residential models Aprilaire 110, Aprilaire 112, Aprilaire 445, April


In stock! Ships in 1 business day.
Aprilaire 4004 Humidifier Inline Strainer
Our Price: $7.65
Retail: $9.99
You Save 23%!

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Aprilaire 4332 Humidifier Damper Assembly
(4332)

The Aprilaire 4332 Humidifier Damper Assembly is a damper assembly kit that includes a damper blade, spring, and knob. This Aprilaire humidifier kit is designed for Aprilaire humidifier models 400, 500, 550, and 600. This is a genuine Aprilaire part


Special Order. Ships in 9 days.
Aprilaire 4332 Humidifier Damper Assembly
Our Price: $20.00
Retail: $28.00
You Save 29%!

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Aprilaire 4515 Blower Motor for 1700 1750 Dehum.
(4515)

The Aprilaire 4515 Blower Motor for 1700/1750 Dehumidifier will keep it running at its best. This blower motor is made specifically for your Aprilaire 1700 or 1750 model dehumidifier and is an essential component to keeping it working properly.

Free shipping within the continental United States!

Special Order. Ships in 5 days.
Aprilaire 4515 Blower Motor for 1700 1750 Dehum.
Our Price: $346.98
Retail: $349.99
You Save 1%!

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Aprilaire 4788 Maintenance Kit with Water Panel 45
(Aprilaire 4788)

The Aprilaire 400 Series Humidifier Maintenance Kit is for use with Aprilaire 400 Series humidifiers including the Aprilaire 400 Humidifier, Aprilaire 400A Humidifier, Aprilaire 400M Humidifier, and other compatible Aprilaire 400 humidifier models.


Special Order. Ships in 10 days.
Aprilaire 4788 Maintenance Kit with Water Panel 45
Our Price: $69.99
Retail: $89.99
You Save 22%!

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BestAir A12WPR Replacement for Aprilaire #12 Humidifier Filter
(Aprilaire 12 R)

The BestAir A12WPR replacement for Aprilaire #12 Humidifier Water Panel Filter features a paper honeycomb filtration to help trap waterborne mineral pollutants and keeps them from entering your home.


In stock! Ships in 1 business day.
BestAir A12WPR Replacement for Aprilaire #12 Humidifier Filter
Our Price: $10.95
Retail: $14.99
You Save 27%!

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Aprilaire 4246 Humidifier Water Distribution Tray
(Aprilaire 4246)

This is an Aprilaire 760 Humdifier Water Distribution Tray replacement for use with the Aprilaire 35 Water Panel Evaporator and the Aprilaire 4236 Scale Control Insert in the following Aprilaire 760 Series humidifiers: Aprilaire 700, Aprilaire 760,


Special Order. Ships in 7 days.
Aprilaire 4246 Humidifier Water Distribution Tray
Our Price: $16.95
Retail: $19.99
You Save 15%!

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Aprilaire 6708 - Slip-In Vent Damper - 8"
(Aprilaire 6708)

The Aprilaire 6706 - 6" Round Damper - Slip-In is a spring-return damper designed to be inserted in an eight inch round branch duct. This HVAC damper helps zone your home without costly duct modification. The Aprilaire damper provides true comfort t


Special Order. Ships in 8 days.
Aprilaire 6708 - Slip-In Vent Damper - 8"
Our Price: $82.61
Retail: $89.99
You Save 8%!

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Aprilaire 4732 Base for Aprilaire 700A 700M
(4732)

The Aprilaire 4732 is the correct replacement for the following humidifiers: Aprilaire Model 700A Humidifier Aprilaire Model 700M Humidifier


Special Order. Ships in 11 days.
Aprilaire 4732 Base for Aprilaire 700A 700M
Our Price: $73.99
Retail: $79.99
You Save 8%!

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Aprilaire 4223 Humidifier Drain Spud Kit 6-Pack
(Aprilaire 4223)

The Aprilaire 4223 Humidifier Drain Spud Kit is a humidifier component replacement kit used in all Aprilaire 500 Series and Aprilaire 600 Series humidifiers including the Aprilaire 500 Humidifier, Aprilaire 550 Humidifier, Aprilaire 550A humidifier,


Special Order. Ships in 9 days.
Aprilaire 4223 Humidifier Drain Spud Kit
Our Price: $23.94

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Aprilaire 4232 Humidifier Orifice Blue
(Aprilaire 4232)

This Aprilaire 4232 Humidifier Orifice (Blue) is used in many Aprilaire humidifiers including the following Aprilaire humidifier models: Aprilaire 350 Humidifier, Aprilaire 360 Humidifier, Aprilaire 440 Humidifier, Aprilaire 700 Humidifier, Aprilair


Special Order. Ships in 15 days.
Aprilaire 4232 Humidifier Orifice Blue
Our Price: $3.30
Retail: $5.99
You Save 45%!

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BestAir A10WPR Replacement for BDP P110-0007 Humidifier Filter
(BDP P110-0007 1R)

This BestAir paper evaporator pad has a honeycomb-shaped filtration media that is specifically designed to trap mineral impurities and pollutants found in your water.


In stock! Ships in 1 business day.
BestAir A10WPR Replacement for BDP P110-0007 Humidifier Filter
Our Price: $15.99
Retail: $19.99
You Save 20%!

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Aprilaire 6706 - 6" Round Damper - Slip-In
(Aprilaire 6706)

The Aprilaire 6706 - 6" Round Damper - Slip-In is a spring-return damper designed to be inserted in a six inch round branch duct. This HVAC damper helps zone your home without costly duct modification. The Aprilaire damper provides true comfort thro


Special Order. Ships in 9 days.
Aprilaire 6706 - 6" Round Damper - Slip-In
Our Price: $68.95
Retail: $79.99
You Save 14%!

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Aprilaire 4655 Manual Humidifier Humidistat
(4655)

The Aprilaire 4655 is the correct replacement for selected Aprilaire humidifiers.


Special Order. Ships in 9 days.
Aprilaire 4655 Manual Humidifier Humidistat
Our Price: $26.95
Retail: $39.99
You Save 33%!

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Aprilaire 4335 Feed Tube Assembly with Sleeve
(Aprilaire 4335)

This is an Aprilaire 4335 Humidifier Water Feed Tube and Sleeve replacement for use with the following Aprilaire humidifiers: Aprilaire 400, Aprilaire 400A, Aprilaire 400M Humidifier, Aprilaire 500 Humidifier, Aprilaire 500A Humidifier, Aprilaire 50


Special Order. Ships in 12 days.
Aprilaire 4335 Feed Tube Assembly with Sleeve
Our Price: $10.50

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Aprilaire Humidifier Saddle Valve - Aprilaire 4001
(Aprilaire 4001)

This Aprilaire Humidifier Saddle Valve (Aprilaire 4001) is used with the Aprilaire 4040 Humidifier Solenoid Valve in numerous Aprilaire humidifier models. The Aprilaire Saddle Valve is a self tappin


Special Order. Ships in 10 days.
Aprilaire Humidifier Saddle Valve - Aprilaire 4001
Our Price: $10.95
Retail: $12.99
You Save 16%!

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Aprilaire 6610 - 10" Zone Control Vent Damper
(Aprilaire 6610)

The Aprilaire 6610 is a round ventilation damper of the following size: 10 inches diameter The Aprilaire 6610 - 10" Zone Control Vent Damper is a motorized damper with durable 24 gauge construction. This automatic vent damper features a positi

Free shipping within the continental United States!

Special Order. Ships in 8 days.
Aprilaire 6610 - 10" Zone Control Vent Damper
Our Price: $101.95
Retail: $109.99
You Save 7%!

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Aprilaire 4010 Humidifier Transformer Replacement
(4010)

The Aprilaire 4010 is the correct replacement for the following humidifiers:Aprilaire 400, 550, 550A, 558, 560, 560A, 568 and 600 Humidifier; Honeywell HE220, HE225, HE260 and HE265 Humidifier.


Special Order. Ships in 11 days.
Aprilaire 4010 Humidifier Transformer Replacement
Our Price: $14.95
Retail: $15.99
You Save 7%!

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Aprilaire 4182 Humidifier Water Distribution Tray
(4182)

The Aprilaire 4182 Humidifier Water Distribution Tray evenly distributes water to all of the evaporative panel. The Aprilaire 4182 Water Distribution Tray attaches to the u-shaped scale control insert.


Special Order. Ships in 11 days.
Aprilaire 4182 Humidifier Water Distribution Tray
Our Price: $15.07
Retail: $25.00
You Save 40%!

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Aprilaire Humidifier Solenoid Valve for 350 & 360
(Aprilaire 4191)

The Aprilaire Humidifier Solenoid Valve is also known as Aprilaire 4191.


Special Order. Ships in 9 days.
Aprilaire Humidifier Solenoid Valve for 350 & 360
Our Price: $53.95
Retail: $74.99
You Save 28%!

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Aprilaire 4725 Seal Kit for Air Purifier Model 2200 10-Pack
(Aprilaire 4725)

The Aprilaire Spacegard 2200 Air Cleaner Seal Kit (Aprilaire 4725) is for use with the Aprilaire 2200 air cleaner and the Space-Gard 2200 air cleaner. This kit includes the necessary seals which are used to seal the following contacts: (1) between t


Special Order. Ships in 8 days.
Aprilaire 4725 Seal Kit for Air Purifier Model 2200
Our Price: $289.50

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BestAir A10WPR Replacement for American Standard BAYPAD01A1010A
(BAYPAD01A1010A 3R)

The BestAir A10WPR Paper Water Panel Filter features honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.


In stock! Ships in 1 business day.
BestAir A10WPR Replacement for American Standard BAYPAD01A1010A
As Low As: $10.99
Retail: $19.99
You Save 45%!

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Aprilaire 4237 Humidifier Motor Replacement
(4237)

The Aprilaire 4237 is a humidifier motor replacement for your select Aprilaire whole house humidifier. This motor will keep your humidifier working at its best. This replacement is very easy to install and will save you the time and money.

Free shipping within the continental United States!

Special Order. Ships in 10 days.
Aprilaire 4237 Humidifier Motor Replacement
Our Price: $110.49
Retail: $126.50
You Save 13%!

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Aprilaire 6735 Air Vent Damper - 10" x 16"
(Aprilaire 6735)

The Aprilaire 6735 is an automatic damper of the following size: 10 inches x 16 inches The Aprilaire 6735 Air Vent Damper - 10" x 16" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motorized d

Free shipping within the continental United States!

Special Order. Ships in 13 days.
Aprilaire 6735 Air Vent Damper - 10" x 16"
Our Price: $155.86
Retail: $199.99
You Save 22%!

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BestAir A35PR Replacement for BDP P1103545 Filter
(BDP P1103545 1R)

The BestAir A35PR humidifier filter has approximate dimensions of 10" x 13 1/4" x 1 1/2".


In stock! Ships in 1 business day.
BestAir A35PR Replacement for BDP P1103545 Filter
As Low As: $7.95
Retail: $9.99
You Save 20%!

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