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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


10" Duct Static Bypass - Aprilaire 6210
(Aprilaire 6210)

The 10" Duct Static Bypass - Aprilaire 6210 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 10 inches in diameter and provides a heightened level of control for your zoning applications. This 10" static by

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Special Order. Ships in 7 days.
10" Duct Static Bypass - Aprilaire 6210
Our Price: $318.75
Retail: $329.99
You Save 3%!

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12" Duct Static Bypass - Aprilaire 6212
(Aprilaire 6212)

The 12" Duct Static Bypass - Aprilaire 6212 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 12 inches in diameter and provides a heightened level of control for your zoning applications. This 12" static by

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Special Order. Ships in 7 days.
12" Duct Static Bypass - Aprilaire 6212
Our Price: $321.59
Retail: $329.99
You Save 3%!

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14" Duct Static Bypass - Aprilaire 6214
(Aprilaire 6214)

The 14" Duct Static Bypass - Aprilaire 6214 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 14 inches in diameter and provides a heightened level of control for your zoning applications. This 14" static by

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Special Order. Ships in 7 days.
14" Duct Static Bypass - Aprilaire 6214
Our Price: $330.02

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16" Duct Static Bypass - Aprilaire 6216
(Aprilaire 6216)

The 16" Duct Static Bypass - Aprilaire 6216 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 16 inches in diameter and provides a heightened level of control for your zoning applications. This 16" static by

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Special Order. Ships in 7 days.
16" Duct Static Bypass - Aprilaire 6216
Our Price: $367.97
Retail: $399.90
You Save 8%!

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Aprilaire 6608 Auto Motorized Vent Damper - 8"
(Aprilaire 6608)

The Aprilaire 6608 Auto Motorized Vent Damper - 8" measures 8 inches in diameter and works well with either rigid metal or flex duct. The Aprilaire closed damper features adjustable blade positioning and an integrated foam seal for flexibility with


Special Order. Ships in 7 days.
Aprilaire 6608 Auto Motorized Vent Damper - 8"
Our Price: $95.24
Retail: $99.99
You Save 5%!

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Aprilaire 6609 - Zone Control 9" Vent Damper
(Aprilaire 6609)

The Aprilaire 6609 - Zone Control 9" Vent Damper measures 9 inches in diameter and works well with either rigid metal or flex duct. The Aprilaire closed damper features adjustable blade positioning and an integrated foam seal for flexibility with an


Special Order. Ships in 5 days.
Aprilaire 6609 - Zone Control 9" Vent Damper
Our Price: $89.89
Retail: $89.99
You Save 0%!

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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

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Special Order. Ships in 8 days.
Aprilaire 6610 - 10" Zone Control Vent Damper
Our Price: $104.99
Retail: $109.99
You Save 5%!

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Aprilaire 6612 Automatic Ventilation Damper - 12"
(Aprilaire 6612)

The Aprilaire 6612 is a round ventilation damper of the following size: 12 inches diameter The Aprilaire 6612 Automatic Ventilation Damper - 12" is a motorized damper with durable 24 gauge construction. This automatic vent damper features a po


Special Order. Ships in 6 days.
Aprilaire 6612 Automatic Ventilation Damper - 12"
Our Price: $96.09
Retail: $99.99
You Save 4%!

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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

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Aprilaire 6614 Comfort Zone Vent Damper - 14"
Our Price: $225.57
Retail: $249.99
You Save 10%!

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Aprilaire 6616 Motorized Damper - 16"
(Aprilaire 6616)

The Aprilaire 6616 is a round ventilation damper of the following size: 16 inches diameter The Aprilaire 6616 Motorized Damper - 16" is a motorized damper with durable 24 gauge construction. This automatic vent damper features a position indic

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Special Order. Ships in 9 days.
Aprilaire 6616 Motorized Damper - 16"
Our Price: $121.00
Retail: $129.99
You Save 7%!

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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

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Special Order. Ships in 10 days.
Aprilaire 6618 - 18" Automatic Ventilation Damper
Our Price: $203.97
Retail: $229.99
You Save 11%!

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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

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Special Order. Ships in 7 days.
Aprilaire 6620 - 20" Automatic Vent Damper
Our Price: $205.55
Retail: $229.99
You Save 11%!

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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 7 days.
Aprilaire 6705 - 5 Inch Round Slip-In HVAC Damper
Our Price: $74.81
Retail: $79.99
You Save 6%!

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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: $68.95
Retail: $79.99
You Save 14%!

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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: $79.50
Retail: $79.99
You Save 1%!

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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


Special Order. Ships in 8 days.
Aprilaire 6708 - Slip-In Vent Damper - 8"
Our Price: $82.61
Retail: $89.99
You Save 8%!

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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 7 days.
Aprilaire 6710 - HVAC Vent Damper - 10"
Our Price: $98.17
Retail: $99.99
You Save 2%!

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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

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Special Order. Ships in 4 days.
Aprilaire 6721 Rectangular Duct Damper - 8"x 8"
Our Price: $141.07
Retail: $149.99
You Save 6%!

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Rectangular Damper 8"x 12" - Aprilaire 6723
(Aprilaire 6723)

The Aprilaire 6723 is an automatic damper of the following size: 8 inches x 12 inches The Rectangular Damper 8"x 12" - Aprilaire 6723 is a rectangular duct damper. This ventilation damper is motorized for zone control systems. This motorized d

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Special Order. Ships in 12 days.
Rectangular Damper 8"x 12" - Aprilaire 6723
Our Price: $127.29
Retail: $149.99
You Save 15%!

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Aprilaire 6508 Automatic Damper - 8"
(Aprilaire 6508)

The Aprilaire 6508 Automatic Damper - 8" measures 8 inches in diameter and works well with either rigid metal or flex duct. The Aprilaire closed damper features adjustable blade positioning and an integrated foam seal for flexibility with any zone j

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Special Order. Ships in 8 days.
Aprilaire 6508 Automatic Damper - 8"
Our Price: $105.02
Retail: $129.99
You Save 19%!

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Aprilaire 6606 Motorized Damper - 6"
(Aprilaire 6606)

The Aprilaire 6606 Motorized Damper - 6" measures 6 inches in diameter and works well with either rigid metal or flex duct. The Aprilaire closed damper features adjustable blade positioning and an integrated foam seal for flexibility with any zone j


Special Order. Ships in 9 days.
Aprilaire 6606 Motorized Damper - 6"
Our Price: $91.73
Retail: $99.99
You Save 8%!

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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

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Special Order. Ships in 9 days.
Aprilaire 6726 HVAC Rectangular Damper - 8"x 18"
Our Price: $152.34
Retail: $199.99
You Save 24%!

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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 11 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 6 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 7 days.
Aprilaire 6729 Automatic Vent Damper - 8" x 24"
Our Price: $136.65
Retail: $149.99
You Save 9%!

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Filters Fast - Aprilaire filters

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