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Aprilaire filters

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


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


Special Order. Ships in 9 days.
Rectangular Air Damper 10" x 12" - Aprilaire 6733
Our Price: $149.90
Retail: $199.99
You Save 25%!






Aprilaire 6734 Auto HVAC Damper - 10" x 14"
(Aprilaire 6734)

The Aprilaire 6734 is an automatic damper of the following size: 10 inches x 14 inches The Aprilaire 6734 Auto HVAC Damper - 10" x 14" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motorized


Special Order. Ships in 26 days.
Aprilaire 6734 Auto HVAC Damper - 10" x 14"
Our Price: $170.95
Retail: $199.99
You Save 15%!






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


Special Order. Ships in 9 days.
Aprilaire 6735 Air Vent Damper - 10" x 16"
Our Price: $154.86
Retail: $199.99
You Save 23%!






Aprilaire 6736 Ventilation Damper - 10" x 18"
(Aprilaire 6736)

The Aprilaire 6736 Ventilation Damper - 10" x 18" 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 ad


Special Order. Ships in 9 days.
Aprilaire 6736 Ventilation Damper - 10" x 18"
Our Price: $140.16
Retail: $149.99
You Save 7%!






Aprilaire 6725 - Rectangular Damper 8" x 16"
(Aprilaire 6725)

The Aprilaire 6725 is an automatic damper of the following size: 8 inches x 16 inches The Aprilaire 6725 - Rectangular Damper 8" x 16" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motorized


Special Order. Ships in 8 days.
Aprilaire 6725 - Rectangular Damper  8" x 16"
Our Price: $125.00
Retail: $149.99
You Save 17%!






Aprilaire 6726 HVAC Rectangular Damper - 8"x 18"
(Aprilaire 6726)

The Aprilaire 6726 is an automatic damper of the following size: 8 inches x 18 inches The Aprilaire 6726 HVAC Rectangular Damper - 8"x 18" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motori


Special Order. Ships in 9 days.
Aprilaire 6726 HVAC Rectangular Damper - 8"x 18"
Our Price: $151.34
Retail: $199.99
You Save 24%!






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


Special Order. Ships in 9 days.
Aprilaire 6727 - Automatic Vent Damper - 8" x 20"
Our Price: $129.97
Retail: $149.99
You Save 13%!






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


Special Order. Ships in 9 days.
Aprilaire 6728 - Motorized Air Damper - 8" x 22"
Our Price: $157.67
Retail: $199.99
You Save 21%!






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


Special Order. Ships in 9 days.
Aprilaire 6729 Automatic Vent Damper - 8" x 24"
Our Price: $135.65
Retail: $149.99
You Save 10%!






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


Special Order. Ships in 9 days.
Aprilaire 6730 Rectangular Vent Damper - 8" x 26"
Our Price: $164.69
Retail: $199.99
You Save 18%!






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


Special Order. Ships in 9 days.
Aprilaire 6731 Motorized Duct Damper - 8" x 28"
Our Price: $168.91
Retail: $199.99
You Save 16%!






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


Special Order. Ships in 9 days.
Aprilaire 6738 Rectangular Vent Damper - 10" x 22"
Our Price: $170.31
Retail: $199.99
You Save 15%!






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


Special Order. Ships in 9 days.
Aprilaire 6739 - Auto Rectangular Damper 10" x 24"
Our Price: $173.83
Retail: $199.99
You Save 13%!






Aprilaire 4896 Door Seal for 1413 Upgrade Kit 20pk
(Aprilaire 4896)

The Aprilaire 4896 Door Seal for 1413 Upgrade Kit is a replacement door seal for the Aprilaire 1413 Upgrade kit, which is used with the Spacegard 2400 and Aprilaire 2400 air cleaner models. This door seal is constructed with styrofoam and is fully f


Special Order. Ships in 4 days.
Aprilaire 4896 Door Seal for 1413 Upgrade Kit 20pk
Our Price: $41.45
Retail: $49.99
You Save 17%!






Aprilaire 6614 Comfort Zone Vent Damper - 14"
(Aprilaire 6614)

The Aprilaire 6614 is a round ventilation damper of the following size: 14 inches diameter The Aprilaire 6614 Comfort Zone Vent Damper - 14" is a motorized damper with durable 24 gauge construction. This automatic vent damper features a positi


Special Order. Ships in 10 days.
Aprilaire 6614 Comfort Zone Vent Damper - 14"
Our Price: $101.00
Retail: $129.99
You Save 22%!






Aprilaire 6618 - 18" Automatic Ventilation Damper
(Aprilaire 6618)

The Aprilaire 6618 is a round ventilation damper of the following size: 18 inches diameter The Aprilaire 6618 - 18" Automatic Ventilation Damper is a motorized damper with durable 24 gauge construction. This automatic vent damper features a po


Special Order. Ships in 9 days.
Aprilaire 6618 - 18" Automatic Ventilation Damper
Our Price: $202.97
Retail: $229.99
You Save 12%!






Aprilaire 6620 - 20" Automatic Vent Damper
(Aprilaire 6620)

The Aprilaire 6620 is a round ventilation damper of the following size: 20 inches diameter The Aprilaire 6620 - 20" Automatic Vent Damper is a motorized damper with durable 24 gauge construction. This automatic vent damper features a position


Special Order. Ships in 9 days.
Aprilaire 6620 - 20" Automatic Vent Damper
Our Price: $204.55
Retail: $229.99
You Save 11%!






Aprilaire 6704 - 4" Automatic Slip-In Vent Damper
(Aprilaire 6704)

The Aprilaire 6704 is an automatic vent damper that is the following size: 4 inches The Aprilaire 6704 - 4" Automatic Slip-In Vent Damper is a motorized damper. This automatic damper is round in shape. This ventilation damper is a slip-in


Special Order. Ships in 9 days.
Aprilaire 6704 - 4" Automatic Slip-In Vent Damper
Our Price: $72.24
Retail: $79.99
You Save 10%!






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 9 days.
Aprilaire 6705 - 5 Inch Round Slip-In HVAC Damper
Our Price: $73.81
Retail: $79.99
You Save 8%!






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: $65.95
Retail: $69.99
You Save 6%!






Aprilaire 6707 - Slip-in Round 7" Damper
(Aprilaire 6707)

The Aprilaire 6707 - Slip-in Round 7" Damper is a spring-return damper designed to be inserted in a seveb 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 6707 - Slip-in Round 7" Damper
Our Price: $78.50
Retail: $79.99
You Save 2%!






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 9 days.
Aprilaire 6708 - Slip-In Vent Damper - 8"
Our Price: $81.61
Retail: $89.99
You Save 9%!






Aprilaire 6710 - HVAC Vent Damper - 10"
(Aprilaire 6710)

The Aprilaire 6710 is a round slip-in style damper with the following diameter: 10 inches The Aprilaire 6710 - HVAC Vent Damper - 10" is a simple solution to providing comfort control zoning in your home. This Aprilaire damper measures 12.6 in


Special Order. Ships in 9 days.
Aprilaire 6710 - HVAC Vent Damper - 10"
Our Price: $97.17
Retail: $99.99
You Save 3%!






Aprilaire 6721 Rectangular Duct Damper - 8"x 8"
(Aprilaire 6721)

The Aprilaire 6721 is an automatic damper of the following size: 8 inches x 8 inches The Aprilaire 6721 Rectangular Duct Damper - 8"x 8" is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motorize


Special Order. Ships in 9 days.
Aprilaire 6721 Rectangular Duct Damper - 8"x 8"
Our Price: $140.07
Retail: $149.99
You Save 7%!






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 10 days.
Aprilaire 4182 Humidifier Water Distribution Tray
Our Price: $13.60
Retail: $25.00
You Save 46%!







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