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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:


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: $8.65
Retail: $9.99
You Save 13%!

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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: $8.95
Retail: $11.99
You Save 25%!

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Aprilaire 6303 Zone Control Panel
(Aprilaire 6303)

The Aprilaire 6303 Zone Control Panel is specially designed for use with single-stage compressor, heat pump systems only. The Aprilaire control panel provides independent control for each zone and assures air is directed to the last zone calling thr

Free shipping within the continental United States!

Special Order. Ships in 9 days.
Aprilaire 6303 Zone Control Panel
Our Price: $137.92
Retail: $161.99
You Save 15%!

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Aprilaire 1200 Commercial Humidifier Filter Pad Water Panel
(Aprilaire 1200)

This is an Aprilaire 1200 Humidifier Filter Pad Water Panel for various Aprilaire commercial humidifiers including the Aprilaire 1120 Humidifier, Aprilaire 1130 humidifier, and the Aprilaire 1140 humidifer. The Aprilaire water panel evaporator is th


Special Order. Ships in 10 days.
Aprilaire 1200 Commercial Humidifier Filter Pad Water Panel
Our Price: $63.95
Retail: $90.99
You Save 30%!

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BestAir A12PR Replacement for Chippewa 224
(Chippewa 224 1R)

The BestAir A12PR Metal Evaporator Pad measures approximately 14-3/4" x 1-5/8" x 11-3/8", and is the correct water panel replacement filter for several humidifier systems manufactured by Chippewa, AprilAire and Walton.


In stock! Ships in 1 business day.
BestAir A12PR Replacement for Chippewa 224
Our Price: $14.95
Retail: $16.99
You Save 12%!

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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: $11.99
Retail: $19.99
You Save 40%!

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Aprilaire 56 Duct Mount Humidistat Control
(Aprilaire 56)

The Aprilaire 56 Duct Mount Humidistat Control is a duct mounted AutoTrac electronic humidistat. This Aprilaire humidifier humidistat includes an outdoor air sensor. Can be used with any humidifier that has a 24 volt AC control system. This Aprilair


Special Order. Ships in 13 days.
Aprilaire 56 Duct Mount Humidistat Control
Our Price: $64.95
Retail: $182.99
You Save 65%!

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Aprilaire 4732 Base Replacement for Aprilaire 4245
(Aprilaire 4245)

The Aprilaire 700 Series Humidifier Cabinet Base is also known as Aprilaire 4245.


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Aprilaire 4732 Base Replacement for Aprilaire 4245
Our Price: $74.99
Retail: $99.99
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Aprilaire 5153 EZ Kleen Filter Replacement - 2-Pack 2-Pack
(5153)

The Aprilaire 5153 fits the following model ventilator: 8100 Energy Recovery Ventilator Aprilaire EZ Kleen Filter Replacement 2-Pack is a washable replacement filter.


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Aprilaire 5153 EZ Kleen Filter Replacement - 2-Pack
Our Price: $45.00

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Aprilaire 5158 Air Flow Measuring Device
(5158)

The Aprilaire 5158 fits the following model ventilator: Aprilaire 8100 Energy Recovery Ventilator The Aprilaire 5158 Air Flow Measuring Device measures the air flow inside the Aprilaire 8100 Energy Recovery Ventilator.

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Special Order. Ships in 10 days.
Aprilaire 5158 Air Flow Measuring Device
Our Price: $102.11
Retail: $271.99
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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


In Stock! Ships in 9 to 10 business days.
Aprilaire 4332 Humidifier Damper Assembly
Our Price: $21.00
Retail: $27.99
You Save 25%!

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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 9 days.
Aprilaire 4732 Base for Aprilaire 700A 700M
Our Price: $74.99
Retail: $87.99
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Aprilaire 4330 Humidifier Scale Control Insert 8-Pack
(Aprilaire 4330)

This is an Aprilaire 4330 Humidifier Scale Control Insert replacement for use in conjunction with the Aprilaire Water Panel Evaporator and the Aprilaire Water Distribution Tray in the following Aprilaire humidifiers: Aprilaire 600 Humidifiers, April


Special Order. Ships in 9 days.
Aprilaire 4330 Humidifier Scale Control Insert
Our Price: $87.92

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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: $27.95
Retail: $39.99
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FiltersFast A12PR Replacement for Aprilaire 12, 440
(Aprilaire 12 1R)

The Aprilaire #12 Metal Humidifier Water Panel Filter is the correct compatible replacement for the following models of humidifiers: Aprilaire 112 Aprilaire 136 Aprilaire 224 Aprilaire 440 Aprilaire 445 Aprilaire 445A Chippewa 224 Chippewa


In stock! Ships in 1 business day.
FiltersFast A12PR Replacement for Aprilaire 12, 440
Our Price: $14.95
Retail: $16.99
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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: $11.50
Retail: $12.99
You Save 11%!

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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: $16.99
Retail: $19.99
You Save 15%!

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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: $4.30
Retail: $5.99
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Aprilaire 6705 - 5 Inch Round Slip-In HVAC Damper
(Aprilaire 6705)

The Aprilaire 6705 - 5 Inch Round Slip-In HVAC Damper is a spring-return damper designed to be inserted in a five inch round branch duct. This HVAC damper helps zone your home without costly duct modification. The Aprilaire damper provides true comf


Special Order. Ships in 16 days.
Aprilaire 6705 - 5 Inch Round Slip-In HVAC Damper
Our Price: $75.81
Retail: $88.99
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Aprilaire 4184 Water Distribution Tray Nozzle
(Aprilaire 4184)

This is an Aprilaire 4184 Water Distribution Tray Nozzle replacement for the Aprilaire 350 Humidifier, Aprilaire 360 Humidifier, Aprilaire 550 Humidifier, Aprilaire 560 Humidifier, Aprilaire 560A Humidifier, and Aprilaire 568 Humidifier. It fits Apr


Special Order. Ships in 20 days.
Aprilaire 4184 Water Distribution Tray Nozzle
Our Price: $16.99
Retail: $19.99
You Save 15%!

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Aprilaire 4231 Humidifier Orifice Yellow 12-Pack
(Aprilaire 4231)

This Aprilaire 4231 Humidifier Orifice (Yellow) is used in many Aprilaire humidifiers including the following Aprilaire humidifier models: Aprilaire 400 Humidifier, Aprilaire 400A Humidifier, Aprilaire 400M Humidifier, Aprilaire 500 Humidifier, Apri


Special Order. Ships in 9 days.
Aprilaire 4231 Humidifier Orifice Yellow
Our Price: $51.60

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Aprilaire 4005 Water Solenoid Valve Assembly
(4005)

The Aprilaire 4005 is the correct replacement for the following humidifiers: Aprilaire Model 110 Humidifier Aprilaire Model 112 Humidifier


Special Order. Ships in 11 days.
Aprilaire 4005 Water Solenoid Valve Assembly
Our Price: $75.99
Retail: $89.99
You Save 16%!

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Aprilaire 4185 Humidifier Baffle Replacement
(4185)

The Aprilaire 4185 Humidifier Baffle Replacement attaches to the inside of the humidifier's housing and holds the water feed nozzle in place.


Special Order. Ships in 5 days.
Aprilaire 4185 Humidifier Baffle Replacement
Our Price: $15.69
Retail: $22.99
You Save 32%!

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Aprilaire 4410 Humidifier Water Level Sensor
(4410)

The Aprilaire 4410 is the correct replacement for the following humidifiers: Aprilaire Model 400 Humidifier Aprilaire Model 400A Humidifier Aprilaire Model 400M Humidifier


Special Order. Ships in 9 days.
Aprilaire 4410 Humidifier Water Level Sensor
Our Price: $34.88
Retail: $39.99
You Save 13%!

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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 9 days.
Aprilaire 6610 - 10" Zone Control Vent Damper
Our Price: $102.95
Retail: $119.99
You Save 14%!

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Filters Fast - Aprilaire filters

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