Aprilaire 400

38 Parts Available For This Model

      First time purchase from them... excellent experience. Would not hesitate to order again from them or refer others.

February 1, 2015
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Part Categories for Aprilaire 400:

Complete Units | Controls | Covers | Filters | Frames | Hoses, Valves, and Regulators | Other Parts | Temperature Gauges | Transformers | Tubing

Accessories for all Humidifiers:

Accessories | Chemicals | Tubing

Model Description

Eliminates standing water, making it the perfect choice for homes with sept...

Additional Model Information:

Remote sensing bulb

Owner's Manuals for Aprilaire 400:

Complete Units

Part No & DescriptionPrice
apr400A - Aprilaire Humidifier Unit Auto
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$203.99

Controls

Part No & DescriptionPrice
APR56 - Humidistat For Autotrac Has Outdoor Temp
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$117.95
apr4305 - Gasket Automatic Humidifier Control
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$4.73

Covers

Part No & DescriptionPrice
APR4329 - Cover For Aprilaire
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$76.63

Filters

Part No & DescriptionPrice
apr45 - Wick/filter For Aprilaire Aftermarket
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$18.10

Frames

Part No & DescriptionPrice
apr4407 - Water Distribution Tray
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$19.10

Hoses, Valves, and Regulators

Part No & DescriptionPrice
28115205 - Flexible Bypass Hose 36 Inch
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$9.99
apr4229 - Saddle Valve Adapter
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$51.54
APR4231 - Orifice Yellow
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$4.20
APR4406 - Float Assembly Model 400
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$13.58
apr4403 - Scale Control Insert/float Chamber
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$17.08
apr4405 - Float Cover
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$15.12
apr4040 - Water Valve. Can Also Use A01-0814-148
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$73.41
apr4004 - In Line Strainer
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$4.99
APR4001 - Saddle Valve For Aprilaire
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$19.99

Other Parts

Part No & DescriptionPrice
apr4280 - Shock Arrestor
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$129.20
GA50 - Relay Current Sensing
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$35.99
APR4332 - Damper Assembly
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$27.96
APR4409 - Name Plate Model 400
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$13.57
APR4408 - Hole Plug Model 400
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$7.75
apr4336 - Resistor Case And Manual
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$12.04
APR4404 - Base Model 400
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$87.96
APR4410 - Water Level Sensor
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$29.46

Temperature Gauges

Part No & DescriptionPrice
apr8052 - Outdoor Temperature Sensor
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$13.06

Transformers

Part No & DescriptionPrice
apr4010 - Transformer For Aprilaire
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$29.28

Tubing

Part No & DescriptionPrice
apr4335 - Feed Tube With Compression Sleeve
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$10.92

Accessories for all Humidifiers:

Accessories

Part No & DescriptionPrice
AC-912 - Pan Tabets ( 6 Pack)
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$13.63
246 - Humidifier Treatment
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$12.80

Chemicals

Part No & DescriptionPrice
FSRM6 - Humidafresh Rainforest Mist Water Treatm
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$4.99
AC802 - Humidifier Bacteriostatic Water Treatmen
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$7.50
1T-6 - Humdf Water Treatment32 Oz
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$6.25
FSCA6 - Humidafresh Cinnamon Apple Water Treatme
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$3.99
FSOB6 - Humidafresh Ocean Breeze
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$6.24
AC816 - Extra Strength Humidifier Cleaner
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$6.25
FSFV6 - Humidafresh Vanilla Water Treatment
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$4.99
3US-6 - Water Treatment Cleaner
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$6.25

Tubing

Part No & DescriptionPrice
21581001 - Screw Clamp, 5 1/4 - 6 3/4
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$1.99