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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 56 Duct Mount Humidistat Control
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $182.99

Our Price: $89.95

Save 51%!

Aprilaire Humidifier Solenoid Valve for 350 & 360
Special Order.
Ships in 10 to 11 days.

Retail: $94.99

Our Price: $74.95

Save 21%!

Aprilaire 4785 Maintenance Kit with Water Panel 35
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $119.99

Our Price: $99.99

Save 17%!

Aprilaire 4335 Feed Tube Assembly with Sleeve
Special Order.
Ships in 13 to 14 days.

Retail: $14.99

Our Price: $12.95

Save 14%!

Aprilaire Humidifier Saddle Valve - Aprilaire 4001
In Stock!
Ships in 1 business day

Retail: $19.99

Our Price: $14.95

Save 25%!

Aprilaire 6303 Zone Control Panel
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 1 business day

Retail: $191.99

Our Price: $159.99

Save 17%!

Aprilaire 50 Humidifier Current Sensing Ray
Special Order.
Ships in 14 to 15 days.

Retail: $46.99

Our Price: $39.99

Save 15%!

BestAir A35PR Replacement for Day and Night P1103545
In Stock!
Ships in 1 business day

Retail: $14.99

As Low As: $9.95

Save 34%!

FiltersFast A12WPR Replacement for Aprilaire 12 Humidifier Panel

Out of stock

Retail: $19.99

As Low As: $12.95

Save 35%!

Aprilaire 4182 Humidifier Water Distribution Tray
Special Order.
Ships in 11 to 12 days.

Retail: $29.99

Our Price: $24.99

Save 17%!

Aprilaire 5158 Air Flow Measuring Device
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $271.99

Our Price: $159.99

Save 41%!

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

within the continental U.S.

Special Order.
Ships in 13 to 14 days.

Retail: $117.99

Our Price: $99.99

Save 15%!

Aprilaire 4740 Humidifier Fan Relay for 700A 700M
Special Order.
Ships in 9 to 10 days.

Retail: $27.99

Our Price: $22.99

Save 18%!

Aprilaire 4517 Humidifier Power Supply
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 11 to 12 days.

Retail: $199.99

Our Price: $110.99

Save 45%!

Aprilaire 4407 Humidifier Water Distribution Tray
Special Order.
Ships in 10 to 11 days.

Retail: $24.99

Our Price: $21.95

Save 12%!

Aprilaire 4410 Humidifier Water Level Sensor
Special Order.
Ships in 12 to 13 days.

Retail: $39.99

Our Price: $34.88

Save 13%!

BestAir A35WPR Replacement For Space-Gard #35

Out of stock

Retail: $15.99

As Low As: $12.45

Save 22%!

Aprilaire 4732 Base Replacement for Aprilaire 4245
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 13 to 14 days.

Retail: $117.99

Our Price: $99.99

Save 15%!

Aprilaire 4246 Humidifier Water Distribution Tray
Special Order.
Ships in 11 to 12 days.

Retail: $24.99

Our Price: $19.95

Save 20%!

Aprilaire 4331 Humidifier Water Distribution Tray
Special Order.
Ships in 14 to 15 days.

Retail: $26.99

Our Price: $23.49

Save 13%!

Aprilaire 4184 Water Distribution Tray Nozzle
Special Order.
Ships in 10 to 11 days.

Retail: $19.99

Our Price: $16.99

Save 15%!

Aprilaire 5000 Electronic Air Purifier
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 14 to 15 days.

Retail: $657.95

Our Price: $571.95

Save 13%!

Aprilaire 6610 - 10" Zone Control Vent Damper
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 1 business day

Retail: $132.95

Our Price: $114.95

Save 14%!

Aprilaire 6706 - 6" Round Damper - Slip-In
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 12 to 13 days.

Retail: $89.99

Our Price: $79.95

Save 11%!

Aprilaire 6737 Rectangular Vent Damper - 10" x 20"
FREE SHIPPING!

within the continental U.S.

Special Order.
Ships in 11 to 12 days.

Retail: $169.99

Our Price: $144.71

Save 15%!

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