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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 4403 Humidifier Float Chamber
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Our Price: $233.70

Aprilaire 4406 Humidifier Float Valve Assembly
Special Order.
Ships in 8 to 9 days.

Retail: $17.99

Our Price: $12.95

Save 28%!

Aprilaire 4515 Blower Motor for 1700 1750 Dehum.
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $408.99

Our Price: $347.98

Save 15%!

Aprilaire 4518 Humidifier Control Panel
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $224.99

Our Price: $199.95

Save 11%!

Aprilaire 4594 Duct Mounted Humidistat
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 12 to 13 days.

Retail: $216.99

Our Price: $185.00

Save 15%!

Aprilaire 4640 Humidifier Scale Control Insert
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 11 to 12 days.

Our Price: $169.50

Aprilaire 4670 Powered Humidifier Motor
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 10 to 11 days.

Retail: $168.99

Our Price: $144.57

Save 14%!

Aprilaire 4851 Humidifier Blower Activation Relay
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 7 to 8 days.

Our Price: $259.50

Aprilaire 5153 EZ Kleen Filter Replacement - 2-Pack
Special Order.
Ships in 10 to 11 days.

Retail: $44.99

Our Price: $39.95

Save 11%!

Aprilaire 4405 Humidifier Float Cover 4405
Special Order.
Ships in 5 to 6 days.

Retail: $19.99

Our Price: $17.95

Save 10%!

Aprilaire 51 Furnace Current Sensing Relay
Special Order.
Ships in 10 to 11 days.

Retail: $64.99

Our Price: $54.95

Save 15%!

Aprilaire 6210 - 10" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $374.99

Our Price: $319.75

Save 15%!

Aprilaire 6212 - 12" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $378.99

Our Price: $322.59

Save 15%!

Aprilaire 6214 - 14" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $388.99

Our Price: $331.02

Save 15%!

Aprilaire 6216 16" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $432.99

Our Price: $368.97

Save 15%!

Aprilaire 6218 18" Round Static Bypass Damper
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $437.99

Our Price: $372.48

Save 15%!

Aprilaire 6220 20" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $508.99

Our Price: $433.62

Save 15%!

Aprilaire 8081 Temperature Sensor Module
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 12 to 13 days.

Retail: $106.99

Our Price: $91.95

Save 14%!

Aprilaire 6404 - Zone Comfort Control Panel
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 9 to 10 days.

Retail: $299.99

Our Price: $249.95

Save 17%!

Aprilaire 6506 - 6" Automatic Vent Damper
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 8 to 9 days.

Retail: $143.95

Our Price: $124.95

Save 13%!

Aprilaire 6508 Automatic Damper - 8"
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $129.99

Our Price: $106.02

Save 18%!

Aprilaire 6606 Motorized Damper - 6"
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 11 to 12 days.

Retail: $229.95

Our Price: $199.95

Save 13%!

Aprilaire 6607 - 7" Automatic Vent Damper
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 13 to 14 days.

Retail: $102.99

Our Price: $88.00

Save 15%!

Aprilaire 6608 Auto Motorized Vent Damper - 8"
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $131.95

Our Price: $113.95

Save 14%!

Aprilaire 6609 - Zone Control 9" Vent Damper
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 7 to 8 days.

Retail: $149.95

Our Price: $129.95

Save 13%!

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