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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 Product List:


AprilAire 4183 Humidifier Water Distribution Tray
Special Order.
Ships in 5 to 6 days.

Retail: $34.99

Our Price: $24.99

Save 29%!

AprilAire 4238 Humidifier Circuit Board
Special Order.
Ships in 5 to 6 days.

Retail: $99.99

Our Price: $84.95

Save 15%!

AprilAire 4240 Humidifier Male Disconnect Assembly
Special Order.
Ships in 5 to 6 days.

Retail: $44.99

Our Price: $34.95

Save 22%!

AprilAire 4247 Humidifier Fan Blade Replacement
Special Order.
Ships in 5 to 6 days.

Retail: $47.99

Our Price: $39.99

Save 17%!

AprilAire 4332 Humidifier Damper Assembly
Special Order.
Ships in 5 to 6 days.

Retail: $49.99

Our Price: $34.99

Save 30%!

AprilAire 4403 Humidifier Float Chamber
Special Order.
Ships in 5 to 6 days.

Our Price: $59.70

AprilAire 4406 Humidifier Float Valve Assembly
Special Order.
Ships in 5 to 6 days.

Retail: $19.99

Our Price: $14.99

Save 25%!

AprilAire 4517 Humidifier Power Supply
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $199.99

Our Price: $159.99

Save 20%!

AprilAire 4518 Humidifier Control Panel
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $299.99

Our Price: $219.99

Save 27%!

AprilAire 4594 Duct Mounted Humidistat
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $299.99

Our Price: $249.99

Save 17%!

AprilAire 4655 Manual Humidifier Humidistat
Special Order.
Ships in 5 to 6 days.

Retail: $59.99

Our Price: $49.99

Save 17%!

AprilAire 4732 Base for AprilAire 700A 700M
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $149.99

Our Price: $129.99

Save 13%!

AprilAire 4740 Humidifier Fan Relay for 700A 700M
Special Order.
Ships in 5 to 6 days.

Retail: $37.99

Our Price: $29.99

Save 21%!

AprilAire 4851 Humidifier Blower Activation Relay
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $49.99

As Low As: $31.99

Save 36%!

AprilAire 50 Humidifier Current Sensing Ray
Special Order.
Ships in 5 to 6 days.

Retail: $59.99

Our Price: $49.99

Save 17%!

AprilAire 5153 EZ Kleen Filter Replacement - 2-Pack
Special Order.
Ships in 5 to 6 days.

Retail: $39.99

Our Price: $29.99

Save 25%!

AprilAire 5158 Air Flow Measuring Device
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $271.99

Our Price: $159.99

Save 41%!

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

Retail: $34.99

Our Price: $24.99

Save 29%!

AprilAire 51 Furnace Current Sensing Relay
Special Order.
Ships in 5 to 6 days.

Retail: $89.99

Our Price: $64.99

Save 28%!

AprilAire 4079 Humidifier Feed Tube and Nozzle
Special Order.
Ships in 5 to 6 days.

Retail: $19.99

Our Price: $17.99

Save 10%!

AprilAire 60 Digital Humidistat Replacement for AprilAire 58
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $149.99

Our Price: $129.95

Save 13%!

AprilAire 60 Digital Humidistat- Blower Activation
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $149.99

Our Price: $129.95

Save 13%!

AprilAire 8082 Temperature & Humidity Module
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $299.99

Our Price: $229.99

Save 23%!

AprilAire 8800 Universal Programmable Thermostat
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $549.99

Our Price: $449.99

Save 18%!

AprilAire 6210 - 10" Duct Static Bypass
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 5 to 6 days.

Retail: $429.99

Our Price: $359.99

Save 16%!

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