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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 6727 - Automatic Vent Damper - 8" x 20"
(Aprilaire 6727)

The Aprilaire 6727 is an automatic damper of the following size: 8 inches x 20 inches The Aprilaire 6727 - Automatic Vent Damper - 8" x 20" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motor

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Special Order. Ships in 12 days.
Aprilaire 6727 - Automatic Vent Damper - 8" x 20"
Our Price: $130.97
Retail: $149.99
You Save 13%!

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Aprilaire 6728 - Motorized Air Damper - 8" x 22"
(Aprilaire 6728)

The Aprilaire 6728 is an automatic damper of the following size: 8 inches x 22 inches The Aprilaire 6728 - Motorized Air Damper - 8" x 22" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motori

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Special Order. Ships in 8 days.
Aprilaire 6728 - Motorized Air Damper - 8" x 22"
Our Price: $158.67
Retail: $199.99
You Save 21%!

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Aprilaire 6729 Automatic Vent Damper - 8" x 24"
(Aprilaire 6729)

The Aprilaire 6729 is an automatic damper of the following size: 8 inches x 24 inches The Aprilaire 6729 Automatic Vent Damper - 8" x 24" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motoriz

Free shipping within the continental United States!

Special Order. Ships in 10 days.
Aprilaire 6729 Automatic Vent Damper - 8" x 24"
Our Price: $136.65
Retail: $149.99
You Save 9%!

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Aprilaire 6730 Rectangular Vent Damper - 8" x 26"
(Aprilaire 6730)

The Aprilaire 6730 Rectangular Vent Damper - 8" x 26" is ideal for use in residential applications. This rectangular duct damper features an exclusive Flexible Link design and installs in 4.24" slots within the duct. This Aprilaire damper features a

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Special Order. Ships in 9 days.
Aprilaire 6730 Rectangular Vent Damper - 8" x 26"
Our Price: $165.69
Retail: $199.99
You Save 17%!

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Aprilaire 6731 Motorized Duct Damper - 8" x 28"
(Aprilaire 6731)

The Aprilaire 6731 Motorized Duct Damper - 8" x 28" is ideal for use in residential applications. This rectangular duct damper features an exclusive Flexible Link design and installs in 4.24" slots within the duct. This Aprilaire damper features an

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Special Order. Ships in 9 days.
Aprilaire 6731 Motorized Duct Damper - 8" x 28"
Our Price: $169.91
Retail: $199.99
You Save 15%!

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Aprilaire 6732 Rectangular Duct Damper - 10" x 10"
(Aprilaire 6732)

The Aprilaire 6732 is an automatic damper of the following size: 10 inches x 10 inches The Aprilaire 6732 Rectangular Duct Damper - 10" x 10" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This mot

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Special Order. Ships in 12 days.
Aprilaire 6732 Rectangular Duct Damper - 10" x 10"
Our Price: $145.98
Retail: $149.99
You Save 3%!

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Rectangular Air Damper 10" x 12" - Aprilaire 6733
(Aprilaire 6733)

The Aprilaire 6733 is an automatic damper of the following size: 10 inches x 12 inches The Rectangular Air Damper 10" x 12" - Aprilaire 6733 is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This moto

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Special Order. Ships in 12 days.
Rectangular Air Damper 10" x 12" - Aprilaire 6733
Our Price: $150.90
Retail: $199.99
You Save 25%!

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Aprilaire 6737 Rectangular Vent Damper - 10" x 20"
(Aprilaire 6737)

The Aprilaire 6737 Rectangular Vent Damper - 10" x 20" is ideal for use in residential applications. This rectangular duct damper features an exclusive Flexible Link design and installs in 4.24" slots within the duct. This Aprilaire damper features

Free shipping within the continental United States!

Special Order. Ships in 10 days.
Aprilaire 6737 Rectangular Vent Damper - 10" x 20"
Our Price: $143.71
Retail: $149.99
You Save 4%!

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Aprilaire 6738 Rectangular Vent Damper - 10" x 22"
(Aprilaire 6738)

The Aprilaire 6738 Rectangular Vent Damper - 10" x 22" is ideal for use in residential applications. This rectangular duct damper features an exclusive Flexible Link design and installs in 4.24" slots within the duct. This Aprilaire damper features

Free shipping within the continental United States!

Special Order. Ships in 9 days.
Aprilaire 6738 Rectangular Vent Damper - 10" x 22"
Our Price: $171.31
Retail: $199.99
You Save 14%!

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Aprilaire 6739 - Auto Rectangular Damper 10" x 24"
(Aprilaire 6739)

The Aprilaire 6739 - Auto Rectangular Damper 10" x 24" is ideal for use in residential applications. This rectangular duct damper features an exclusive Flexible Link design and installs in 4.24" slots within the duct. This Aprilaire damper features

Free shipping within the continental United States!

Special Order. Ships in 10 days.
Aprilaire 6739 - Auto Rectangular Damper 10" x 24"
Our Price: $174.83
Retail: $199.99
You Save 13%!

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Aprilaire 104 Replacement Filter - Aprilaire 2140
(Aprilaire 104)

The Aprilaire 104 Replacement Filter is a genuine replacement media for the Aprilaire 2140 Air Cleaner.


In Stock! Ships in 12 to 13 business days.
Aprilaire 104 Replacement Filter - Aprilaire 2140
Our Price: $35.99
Retail: $39.99
You Save 10%!

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Aprilaire 4148 Humidifier Impellor
(4148)

The Aprilaire 4148 Humidifier Impellor is the small propeller that sits in the reservoir, driving water up the feed tube to the unit's water distribution tray, where humidity is created when the water flows over the Water Panel evaporator


In Stock! Ships in 5 to 6 business days.
Aprilaire 4148 Humidifier Impellor
Our Price: $11.94
Retail: $15.94
You Save 25%!

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Aprilaire 4181 Humidifier Float Chamber
(4181)

The Aprilaire 4181 Humidifier Float Chamber is a u-shaped component that encases the water panel and guides built-up mineral desposits back into the water panel.


In Stock! Ships in 5 to 6 business days.
Aprilaire 4181 Humidifier Float Chamber
Our Price: $16.53
Retail: $23.99
You Save 31%!

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Aprilaire 4266 Feed Tube & Compressor Sleeve
(4266)

The Aprilaire 4266 Feed Tube & Compressor Sleeve is a replacement water feed tube and compressor sleeve for Aprilaire humidifier models 560 and 568. This unit includes a 29 1/4" long feed tube with installed orifice and compression sleeve, strainer,


In Stock! Ships in 12 to 13 business days.
Aprilaire 4266 Feed Tube & Compressor Sleeve
Our Price: $14.95
Retail: $16.99
You Save 12%!

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Aprilaire 2400 Air Cleaner Door - Aprilaire 4271
(4271)

The Aprilaire 2400 Air Cleaner Door - Aprilaire 4271 is a replacement access door for the Aprilaire 2400 Air Cleaner. This is the old style door and only fits on the old style air cleaner cabinets. The Aprilaire 4271 door is held in place by large p


In Stock! Ships in 10 to 11 business days.
Aprilaire 2400 Air Cleaner Door - Aprilaire 4271
Our Price: $36.00
Retail: $40.99
You Save 12%!

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Aprilaire 102 Replacement Media for Model 2120
(Aprilaire 102)

The Aprilaire 102 is a replacement air filter that is the correct replacement filter for the following air cleaner: Aprilaire 2120 The Aprilaire 102 Replacement Media for Model 2120 is a 25 inch x 20 inch x 4 inch filter, with exact measuremen


In Stock! Ships in 9 to 10 business days.
Aprilaire 102 Replacement Media for Model 2120
Our Price: $30.00

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Aprilaire 6724 - Rectangular Vent Damper 8"x 14"
(Aprilaire 6724)

The Aprilaire 6724 is an automatic damper of the following size: 8 inches x 14 inches The Aprilaire 6724 - Rectangular Vent Damper 8"x 14" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motori

Free shipping within the continental United States!

In Stock! Ships in 9 to 10 business days.
Aprilaire 6724 - Rectangular Vent Damper 8"x 14"
Our Price: $124.60
Retail: $149.99
You Save 17%!

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