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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.


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Aprilaire filters product list


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 9 days.
Aprilaire 4335 Feed Tube Assembly with Sleeve
Our Price: $9.50
Retail: $9.99
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Aprilaire 4217 Humidifier Scale Control Insert
(Aprilaire 4217)

This is an Aprilaire 4217 Humidifier Scale Control Insert replacement for use with the Aprilaire 500 Humidifier Water Panel Evaporator (Aprilaire 10) and the Aprilaire 4218 Humidifier Water Distribution Tray in the following Aprilaire humidifiers: A


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Aprilaire 4217 Humidifier Scale Control Insert
Our Price: $18.95
Retail: $24.99
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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 11 days.
Aprilaire 4223 Humidifier Drain Spud Kit
Our Price: $25.50

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Aprilaire 350 & 360 Humidifier Maintenance Kit
(Aprilaire 4785)

The Aprilaire 350 / Aprilaire 360 Humidifier Maintenance Kit is a set of humidifier replacement parts for use with the Aprilaire 350 humidifier and Aprilaire 360 humidifier.


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Aprilaire 350 & 360 Humidifier Maintenance Kit
Our Price: $65.95
Retail: $99.99
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Aprilaire 4517 Humidifier Power Supply
(4517)

The Aprilaire 4517 Dehumidifier Power Supply is a key component to keeping your whole-house dehumidifier working properly. The 4517 power supply replacement keeps your Aprilaire whole-house dehumidifier working at its best.

Free shipping within the continental United States!

Special Order. Ships in 11 days.
Aprilaire 4517 Humidifier Power Supply
Our Price: $108.99
Retail: $199.99
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Aprilaire 4238 Humidifier Circuit Board
(4238)

The Aprilaire 4238 Humidifier Circuit board is a circuit board replacement for your whole- house, fan powered humidifier. This circuit board will keep your Aprilaire whole-house humidifier working at its best


Special Order. Ships in 9 days.
Aprilaire 4238 Humidifier Circuit Board
Our Price: $51.95
Retail: $56.99
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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


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Aprilaire 6708 - Slip-In Vent Damper - 8"
Our Price: $81.61
Retail: $89.99
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Trane BAYPAD01A1010A Paper Water Panel Filter
(BAYPAD01A1010A 2R)

The Trane BAYPAD01A1010A Paper Water Panel Filter features honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.


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Trane BAYPAD01A1010A Paper Water Panel Filter
Our Price: $15.99
Retail: $19.99
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BDP P1103545 Metal Humidifier Water Panel Filter
(BDP P1103545 1R)

The BDP P1103545 Metal Humidifier Water Panel Filter is the correct compatible replacement for the following models of humidifiers: BDP HUMBBLBP2317 BDP HUMBBLBP2317-A BDP HUMBBLFP1318A BDP HUMBBLBP2217-A BDP P110LFP1318 BDP P110LFP1318A


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BDP P1103545 Metal Humidifier Water Panel Filter
As Low As: $6.95
Retail: $9.99
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American Standard BAYPAD01A1010A Paper Filter
(BAYPAD01A1010A 3R)

The American Standard BAYPAD01A1010A Paper Water Panel Filter features honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.


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American Standard BAYPAD01A1010A Paper Filter
Our Price: $14.99
Retail: $19.99
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BDP HUMBBSBP2312-A Paper Water Panel Filter
(HUMBBSBP2312-A 2R)

The BDP HUMBBSBP2312-A Paper Water Panel Filter is the correct replacement evaporator pad for BDP humidifiers HUMBBSBP2312-A and HUMCCSBP2312-A, and measures approximately 9-1/2" x 10" x 1-1/2".


In stock! Ships in 1 business day.
BDP HUMBBSBP2312-A Paper Water Panel Filter
Our Price: $14.99
Retail: $19.99
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BDP P110-0007 Paper Humidifier Water Panel Filter
(BDP P110-0007 1R)

The BDP P110-0007 Paper Humidifier Water Panel Filter measures 9-7/16" x 10-1/16" x 1-5/8" (approx.) & is the correct filter for many humidifiers made by BDP, AprilAire, Healthy Climate, Hamilton, Lasko, Carrier, Autoflo, Bryant, Lennox and Totaline.


In stock! Ships in 1 business day.
BDP P110-0007 Paper Humidifier Water Panel Filter
Our Price: $14.99
Retail: $19.99
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Bryant P110-0007 Paper Humidifier Panel Filter
(Bryant P110-0007 1R)

The Bryant P110-0007 Paper Humidifier Evaporator Pad measures 9-7/16" x 10-1/16" x 1-5/8", and is the right replacement filter for many of AprilAire, Autoflo, BDP, Bryant, Carrier, Hamilton, Healthy Climate, Lasko, Lennox and Totaline humidifiers.


In stock! Ships in 1 business day.
Bryant P110-0007 Paper Humidifier Panel Filter
Our Price: $14.99
Retail: $19.99
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Chippewa 220 Humidifier Paper Water Panel Filter
(Chippewa 220 1R)

The Chippewa 220 Humidifier Paper Water Panel Filter is the correct compatible replacement for the following model of humidifier: Chippewa 220 This paper Chippewa humidifier water panel has approximate measurements of 9 1/2" x 10" x 1 1/2". Fi


In stock! Ships in 1 business day.
Chippewa 220 Humidifier Paper Water Panel Filter
Our Price: $14.99
Retail: $19.99
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Aprilaire 4217 Humidifier Float Chamber
(4217)

The Aprilaire 4217 is a humidifier float chamber filter that works with your Aprilaire 550 and 558 model humidifiers. The Aprilaire 4217 Humidifier Float Chamber is a U-shaped component that encases the water panel inside your humidifier. This will


In Stock! Ships in 10 to 11 business days.
Aprilaire 4217 Humidifier Float Chamber
Our Price: $13.10
Retail: $18.99
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Aprilaire 4236 Humidifier Float Chamber 12-Pack
(4236)

The Aprilaire 4236 is a humidifier float chamber filter that works with your select Aprilaire humidifier. The 4236 is a U-shaped component that encases the water panel inside your humidifier. This will direct any mineral deposit build up back into y


Special Order. Ships in 8 days.
Aprilaire 4236 Humidifier Float Chamber
Our Price: $131.40

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Aprilaire 4240 Humidifier Male Disconnect Assembly
(4240)

The Aprilaire 4240 Humidifier Male Disconnect Assembly is for use in your select 700 series Aprilaire whole-house humidifier. This item plugs into the humidifier base and will make contact with the female disconnect assembly. This is where a wiring


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Aprilaire 4240 Humidifier Male Disconnect Assembly
Our Price: $16.66
Retail: $29.99
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Aprilaire 4258 Humidifier Control Relay
(4258)

The Aprilaire 4258 Humidifier Control Relay is used to turn on the fan motor or pump motor of your Aprilaire whole house humidifier. This humidifier relay kit works with your select commercial and residential model of humidifier.


Special Order. Ships in 10 days.
Aprilaire 4258 Humidifier Control Relay
Our Price: $58.53
Retail: $92.75
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Aprilaire 4594 Duct Mounted Humidistat
(4594)

The Aprilaire 4594 Duct Mounted Humidistat is for use in your Aprilaire 1150,1160, and 800 model whole-house humidifier system. These steam humidifiers are self contained systems and the humidifier humidistat measures and controls the relative humid

Free shipping within the continental United States!

Special Order. Ships in 7 days.
Aprilaire 4594 Duct Mounted Humidistat
Our Price: $157.10
Retail: $199.99
You Save 21%!

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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 11 days.
Aprilaire 4410 Humidifier Water Level Sensor
Our Price: $32.88
Retail: $34.99
You Save 6%!

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Aprilaire 4403 Humidifier Float Chamber 6-Pack
(4403)

The Aprilaire 4403 Humidifier Float Chamber is a float chamber for Aprilaire 400 model humidifiers. This float chamber is a U-shaped component that encases the water panel of the humidifier and directs any built-up mineral deposits back into the wat


Special Order. Ships in 52 days.
Aprilaire 4403 Humidifier Float Chamber
Our Price: $221.70

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Aprilaire 4406 Humidifier Float Valve Assembly
(4406)

The Aprilaire 4406 is the correct replacement for the following humidifier: Aprilaire Model 400 Humidifier


Special Order. Ships in 9 days.
Aprilaire 4406 Humidifier Float Valve Assembly
Our Price: $9.84
Retail: $18.00
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Aprilaire 4021 Humidifier Orifice Red
(4021)

The Aprilaire 4021 is the correct replacement for the following humidifiers: Aprilaire Model 112 Humidifier Aprilaire Model 224 Humidifier


Special Order. Ships in 3 days.
Aprilaire 4021 Humidifier Orifice Red
Our Price: $6.75
Retail: $9.99
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Aprilaire 4031 Humidifier Cork Motor Isolator 6-Pack
(4031)

The Aprilaire 4031 is the correct replacement for the following humidifiers: Aprilaire Model 700 Humidifier Aprilaire Model 700 Humidifier Aprilaire Model 700M Humidifier Aprilaire Model 760 Humidifier Aprilaire Model 760A Humidifier


Special Order. Ships in 7 days.
Aprilaire 4031 Humidifier Cork Motor Isolator
Our Price: $47.94

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Aprilaire 4093 Humidifier Reservoir Liner
(4093)

The Aprilaire 4093 Humidifier Reservoir Liner is a reservoir liner for several models of Aprilaire humidifiers, including the 445, 445A, and 448. This humidifier reservoir liner is a plastic insert that fits in the reservoir located at the base of y


Special Order. Ships in 3 days.
Aprilaire 4093 Humidifier Reservoir Liner
Our Price: $12.99
Retail: $19.13
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