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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 Spacegard 2200 Air Cleaner Seal Kit
(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


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Aprilaire Spacegard 2200 Air Cleaner Seal Kit
Our Price: $22.30
Retail: $34.99
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Honeywell HC26 Metal Humidifier Water Panel Filter
(Honeywell HC26 1R)

The Honeywell HC26 Metal Humidifier Humidifier Water Panel Filter measures 10" x 13-1/4" x 1-1/2" (approx.), and is the right replacement evaporator pad for several humidifiers manufactured by Lennox, Honeywell, Bryant, Carrier and Totaline.


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Honeywell HC26 Metal Humidifier Water Panel Filter
As Low As: $5.95
Retail: $9.99
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Aprilaire 112 & 445 Humidifier Water Panel
(Aprilaire 12)

This is an Aprilaire 112 & 445 Humidifier Water Panel Evaporator for the Aprilaire 440 Humidifier, Aprilaire 445 Humidifier, Aprilaire 445A Humidifier, Aprilaire 448 Humidifier, Aprilaire 112 Humidifier, and Aprilaire 224 Humidifier. The Aprilaire w


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Aprilaire 112 & 445 Humidifier Water Panel
Our Price: $13.95
Retail: $15.99
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Aprilaire 4793 - 550 Humidifier Maintenance Kit
(Aprilaire 4793)

The Aprilaire 550 Series Humidifier Maintenance Kit is for use with Aprilaire 550 Series humidifiers including the Aprilaire 550, Aprilaire 550A, Aprilaire 558 Humidifier, and other compatible Aprilaire 550 humidifier models.


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Aprilaire 4793 - 550 Humidifier Maintenance Kit
Our Price: $49.99
Retail: $64.50
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White Rodgers 20x26x5 F825-0549 MERV 8 2-Pack
(FFC20265WRM8)

The White Rodgers 20x26x5 Air Filter F825-0549 is a compatible alternative for the OEM White Rodgers 20x26x5 Air Filter. This filter is made of fine carbon powder bonded to lofted polyester media for odor reduction.


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White Rodgers 20x26x5 F825-0549 MERV 8 2-Pack
Our Price: $40.99
Retail: $50.00
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Aprilaire SpaceGard 2400 Air Filter MERV 8 2-Pack
(FFC162766SGM8)

The Aprilaire SpaceGard 2400 Air Filter is an economical compatible alternative for the Aprilaire SpaceGard 2400 Air Cleaner Systems requiring a 16x27x6 media filter.


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Aprilaire SpaceGard 2400 Air Filter MERV 8 2-Pack
Our Price: $42.99
Retail: $50.00
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GeneralAire GA10 Humidifier Vapor Pad
(7900)

The GeneralAire GA10 Humidifier Vapor Pad is a replacement vapor pad for the GeneralAire 570 Elite Flow Through Humidifer, as well as several humidifier models from Honeywell, AprilAire, and Source1. The hot air from the humidifier's furnace is firs


In Stock! Ships in 7 to 8 business days.
GeneralAire GA10 Humidifier Vapor Pad
Our Price: $11.95
Retail: $19.99
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Aprilaire 550 Humidifier Water Panel Evaporator
(A10WPR)

The 550 fits Aprilaire, Chippewa, Hamilton, Honeywell, Lasko, Totaline, Healthy Climate and Lennox Humidifier systems.


In Stock! Ships in 1 to 2 business days.
Aprilaire 550 Humidifier Water Panel Evaporator
Our Price: $14.99
Retail: $19.99
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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


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Aprilaire 56 Duct Mount Humidistat Control
Our Price: $68.10
Retail: $182.74
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Aprilaire 4602 Ionizing Wire for Aprilaire 5000
(4602)

The Aprilaire 4602 Ionizing Wire for Aprilaire 5000 is an essential component to maintaining your humidifier.This wire generates an electrical field that is used to charge and trap particles. Please note that this ionizing wire is for use on Aprilai


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Aprilaire 4602 Ionizing Wire for Aprilaire 5000
Our Price: $8.99
Retail: $14.99
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Aprilaire 4040 Humidifier Solenoid Valve - 24 Volt
(Aprilaire 4040)

This is an Aprilaire 4040 Humidifier Solenoid Valve replacement that allows the water to come in to your Aprilaire humidifier. It is compatible for use in all Aprilaire humidifier models except for commercial units and residential models Aprilaire 1


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Aprilaire 4040 Humidifier Solenoid Valve - 24 Volt
Our Price: $48.70
Retail: $54.99
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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


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Aprilaire 4232 Humidifier Orifice Blue
Our Price: $1.65
Retail: $5.99
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Aprilaire SpaceGard 2200 Air Filter MERV 8 2-Pack
(FFC20256SGM8)

The Aprilaire SpaceGard 2200 Air Filter is an economical alternative for the OEM Aprilaire 2200 and 2250 Air Filter Media Replacement.


In Stock! Ships in 1 to 2 business days.
Aprilaire SpaceGard 2200 Air Filter MERV 8 2-Pack
Our Price: $55.99
Retail: $59.99
You Save 7%!

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Day and Night P1103545 Metal Water Panel Filter
(DN P1103545 1R)

The Day and Night P1103545 Metal Water Panel Filter measures approximately 10" x 13-1/4" x 1-1/2", and is the correct replacement evaporator pad for many of the Bryant, Carrier, Honeywell, Lennox and Totaline humidifiers.


In stock! Ships in 1 business day.
Day and Night P1103545 Metal Water Panel Filter
As Low As: $5.95
Retail: $9.99
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Spacegard 2400 / Aprilaire 2400 Upgrade Kit
(Aprilaire 1413)

The Aprilaire 1413 is an Aprilaire Upgrade Kit that allows owners of Spacegard 2400 and Aprilaire 2400 air cleaners to use the MERV 13 Aprilaire 413 Filter instead of their MERV 10 Aprilaire 401 Filter. This improves air cleaning performance by 65 p

Free shipping within the continental United States!

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Spacegard 2400 / Aprilaire 2400 Upgrade Kit
Our Price: $54.95
Retail: $64.99
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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
(Aprilaire 4119)

This Spacegard Aprilaire 2200 Filter Pleat Spacer (Aprilaire 4119) is used in the Spacegard Aprilaire 2200 Air Cleaner, Spaceguard Aprilaire 2250 Air Cleaner, and other compatible Spaceguard Aprilaire 2200 Series air cleaner models. There are five p


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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
Our Price: $19.95
Retail: $24.99
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Aprilaire 440 Humidifier Water Panel Evaporator
(A12WPR)

The 440 Humidifier Water Panel Evaporator Replacement is a paper Water Pad for your Aprilaire humidifier.The A12WPR Aprilaire Humidifier Water Panel Evaporator Replacement helps your Aprilaire humidifier system generate humidity. If your home su


In stock! Ships in 1 business day.
Aprilaire 440 Humidifier Water Panel Evaporator
Our Price: $9.99
Retail: $14.99
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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.


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Aprilaire 4237 Humidifier Motor Replacement
Our Price: $67.30
Retail: $126.50
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Aprilaire 4331 Humidifier Water Distribution Tray
(Aprilaire 4331)

This is an Aprilaire 4331 Humidifier Water Distribution Tray replacement for use in conjunction with the Aprilaire Water Panel Evaporator and the Aprilaire Scale Control Insert in the following Aprilaire 500 Series and Aprilaire 600 Series humidif


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Aprilaire 4331 Humidifier Water Distribution Tray
Our Price: $9.90
Retail: $14.99
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Aprilaire 400 Series Humidifier Maintenance Kit
(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.


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Aprilaire 400 Series Humidifier Maintenance Kit
Our Price: $68.99
Retail: $89.99
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Aprilaire #12 Humidifier Water Panel Filter
(Aprilaire 12 R)

The Aprilaire #12 is the compatible replacement for the following humidifiers: SpaceGard/Aprilaire 112, 136, 224, 440, 445, 445A and 448 Furnace Humidifier.


In stock! Ships in 1 business day.
Aprilaire #12 Humidifier Water Panel Filter
Our Price: $9.99
Retail: $14.99
You Save 33%!

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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 12 days.
Aprilaire 4655 Manual Humidifier Humidistat
Our Price: $29.95
Retail: $39.99
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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 11 days.
Aprilaire 4238 Humidifier Circuit Board
Our Price: $51.95
Retail: $56.99
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Aprilaire 4187 Humidifier Drain Spud
(4187)

The Aprilaire 4187 Humidifier Drain Spud attaches to the humidifier's base. The drain spud provides a connection for the 1/2" drain hose.


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Aprilaire 4187 Humidifier Drain Spud
Our Price: $4.98
Retail: $10.99
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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


Special Order. Ships in 11 days.
Aprilaire 4332 Humidifier Damper Assembly
Our Price: $19.00
Retail: $28.00
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