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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 6607 - 7" Automatic Vent Damper
(Aprilaire 6607)

The Aprilaire 6607 - 7" Automatic Vent Damper measures 7 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 z


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Aprilaire 6607 - 7" Automatic Vent Damper
Our Price: $86.00
Retail: $89.99
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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: $94.24
Retail: $99.99
You Save 6%!

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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: $88.89
Retail: $89.99
You Save 1%!

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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: $103.99
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: $95.09
Retail: $99.99
You Save 5%!

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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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Special Order. Ships in 3 days.
Aprilaire 6614 Comfort Zone Vent Damper - 14"
Our Price: $224.57
Retail: $249.99
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Aprilaire 410 Filter Media MERV 11 8-Pack
(Aprilaire 410)

The Aprilaire 410 is a replacement air filter for use in the following air cleaners: Aprilaire 2410 Aprilaire 4400 Single Aprilaire 2400 Aprilaire 2140 The Aprilaire 410 Filter Media for Models 2410 & 4400 is a MERV 11 filter. This Aprilair


Special Order. Ships in 6 days.
Aprilaire 410 Filter Media MERV 11
Our Price: $287.60

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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: $317.75
Retail: $329.99
You Save 4%!

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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: $320.59
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

Free shipping within the continental United States!

Special Order. Ships in 7 days.
14" Duct Static Bypass - Aprilaire 6214
Our Price: $329.02
Retail: $329.99
You Save 0%!

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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: $366.97
Retail: $399.90
You Save 8%!

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18" Duct Static Bypass - Aprilaire 6218
(Aprilaire 6218)

The 18" Duct Static Bypass - Aprilaire 6218 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 18 inches in diameter and provides a heightened level of control for your zoning applications. This 18" static by

Free shipping within the continental United States!

Special Order. Ships in 10 days.
18" Duct Static Bypass - Aprilaire 6218
Our Price: $370.48
Retail: $399.99
You Save 7%!

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20" Duct Static Bypass - Aprilaire 6220
(Aprilaire 6220)

The 20" Duct Static Bypass - Aprilaire 6220 is a static pressure bypass damper with a round shape. The Aprilaire static bypass measures 20 inches in diameter and provides a heightened level of control for your zoning applications. This 20" static by

Free shipping within the continental United States!

Special Order. Ships in 7 days.
20" Duct Static Bypass - Aprilaire 6220
Our Price: $431.62
Retail: $449.99
You Save 4%!

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Aprilaire 8081 Temperature Sensor Module
(Aprilaire 8081)

The Aprilaire 8081 Temperature Sensor Module is designed for use with the Aprilaire model 8800 Universal Communicating Thermostat and supports one onboard and one external temperature sensor. This temperature module can be used to monitor temperatur


Special Order. Ships in 5 days.
Aprilaire 8081 Temperature Sensor Module
Our Price: $89.95
Retail: $99.99
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Aprilaire 6303 Zone Control Panel
(Aprilaire 6303)

The Aprilaire 6303 Zone Control Panel is specially designed for use with single-stage compressor, heat pump systems only. The Aprilaire control panel provides independent control for each zone and assures air is directed to the last zone calling thr

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Special Order. Ships in 15 days.
Aprilaire 6303 Zone Control Panel
Our Price: $135.92
Retail: $144.99
You Save 6%!

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Aprilaire 6402 - 12-Zone Control Expansion Panel
(Aprilaire 6402)

The Aprilaire 6402 - 12-Zone Control Expansion Panel is used with the Aprilaire model 6404 control panel to expand from four to twelve zones in two zone increments. The Aprilaire control panel is fuse protected and features LED indicators for start-


Special Order. Ships in 7 days.
Aprilaire 6402 - 12-Zone Control Expansion Panel
Our Price: $92.89
Retail: $99.99
You Save 7%!

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Aprilaire 6404 - Zone Comfort Control Panel
(Aprilaire 6404)

The Aprilaire 6404 - Zone Comfort Control Panel can be used for any type of zoning application from two to twelve zones. The Aprilaire control panel is configurable for single- or multi-stage, heat/cool or heat pump, and is ideal for use in resident

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Special Order. Ships in 32 days.
Aprilaire 6404 - Zone Comfort Control Panel
Our Price: $185.76
Retail: $199.99
You Save 7%!

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Aprilaire 6504 Intelligent Zone Control Panel
(Aprilaire 6504)

The Aprilaire 6504 Intelligent Zone Control Panel works with the model 8570 thermostat to provide state-of-the-art features to control all types of HVAC equipment. The Aprilaire control panel can be used with heat/cool, heat pump, single- or multi-s

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Special Order. Ships in 7 days.
Aprilaire 6504 Intelligent Zone Control Panel
Our Price: $215.98
Retail: $249.99
You Save 14%!

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Aprilaire 4851 Humidifier Blower Activation Relay 10-Pack
(4851)

The Aprilaire 4851 is the correct replacement for the following humidifiers: Aprilaire 500 Series Humidifiers Aprilaire 600 Series Humidifiers Aprilaire 700 Series Humidifiers


Special Order. Ships in 5 days.
Aprilaire 4851 Humidifier Blower Activation Relay
Our Price: $230.00

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Aprilaire 50 Humidifier Current Sensing Ray
(Aprilaire 50)

The Aprilaire 50 is the correct replacement for the following humidifiers: Aprilaire, Honeywell HE220, HE225, HE260, HE265, HE360 and HE365 humidifiers.


Special Order. Ships in 9 days.
Aprilaire 50 Humidifier Current Sensing Ray
Our Price: $26.00
Retail: $46.62
You Save 44%!

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Aprilaire EZ Kleen Filter Replacement 2-Pack 2-Pack
(5153)

The Aprilaire 5153 fits the following model ventilator: 8100 Energy Recovery Ventilator Aprilaire EZ Kleen Filter Replacement 2-Pack is a washable replacement filter.


Special Order. Ships in 9 days.
Aprilaire EZ Kleen Filter Replacement 2-Pack
Our Price: $41.00

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Aprilaire 5158 Air Flow Measuring Device
(5158)

The Aprilaire 5158 fits the following model ventilator: Aprilaire 8100 Energy Recovery Ventilator The Aprilaire 5158 Air Flow Measuring Device measures the air flow inside the Aprilaire 8100 Energy Recovery Ventilator.

Free shipping within the continental United States!

Special Order. Ships in 8 days.
Aprilaire 5158 Air Flow Measuring Device
Our Price: $100.11
Retail: $271.63
You Save 63%!

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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


Special Order. Ships in 8 days.
Aprilaire 56 Duct Mount Humidistat Control
Our Price: $68.10
Retail: $182.74
You Save 63%!

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Aprilaire 400 Humidifier Float Cover 4405
(4405)

The Aprilaire 400 is the correct replacement for the following humidifiers: Aprilaire 400 Humidifier Aprilaire 400A Humidifier Aprilaire 400M Humidifier Aprilaire 600 Humidifier


Special Order. Ships in 3 days.
Aprilaire 400 Humidifier Float Cover 4405
Our Price: $17.30
Retail: $19.95
You Save 13%!

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Aprilaire 51 Furnace Current Sensing Relay
(Aprilaire 51)

The Aprilaire 51 is the correct replacement for the following humidifiers:Aprilaire Humidifiers Honeywell HE220, HE225, HE260, HE265, HE360 and HE365 Humidifiers


Special Order. Ships in 7 days.
Aprilaire 51 Furnace Current Sensing Relay
Our Price: $39.99
Retail: $64.70
You Save 38%!

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Filters Fast - Aprilaire filters

" Thank you for your expert service when helping me get the proper filters for my old pool and filter system. The new ones are perfect and work very well. All the best! " - Jim, Alamo, CA
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