Aprilaire 400

26 Parts Available For This Model

Find Your Aprilaire Humidifier Model

Choose the first letter or number of your model

OR Browse all Aprilaire Models

Model Description:

Eliminates standing water, making it the perfect choice for homes with septic systems, locations where a floor drain is not available or families interested in water conservation. features truly automatic control. has an evaporation capacity of 0.70 gallons per hour. humidifies tightly-constructed homes with to 4,000 square foot in size

Additional Model Information:

Remote sensing bulb

View Owner's Manuals for Aprilaire 400:

Part Categories for Aprilaire 400:

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

Accessories for all Humidifiers:

Chemicals | Complete Units | Other Parts

All Parts for Aprilaire 400:

Complete Units

Ref.ImagePart No & DescriptionPrice
image
apr400A - Aprilaire Humidifier Unit Auto
View Part Info
$203.99 Add to cart

Controls

Ref.ImagePart No & DescriptionPrice
image
apr8052 - Outdoor Temperature Sensor
View Part Info
$11.53 Add to cart
13
image
APR56 - Humidistat For Autotrac Has Outdoor Temp
View Part Info
$92.58 Add to cart
14
image
apr4305 - Gasket Automatic Humidifier Control
View Part Info
$4.73 Add to cart

Covers

Ref.ImagePart No & DescriptionPrice
5
image
APR4329 - Cover For Aprilaire
View Part Info
$76.63 Add to cart

Filters

Ref.ImagePart No & DescriptionPrice
1
image
apr45 - Wick/filter For Aprilaire
View Part Info
$32.99 Add to cart

Frames

Ref.ImagePart No & DescriptionPrice
3
image
apr4407 - Water Distribution Tray
View Part Info
$19.10 Add to cart

Hoses, Valves, and Regulators

Ref.ImagePart No & DescriptionPrice
image
apr4229 - Saddle Valve Adapter
View Part Info
$51.54 Add to cart
10
image
APR4231 - Orifice Yellow
View Part Info
$4.20 Add to cart
19
image
APR4406 - Float Assembly Model 400
View Part Info
$13.58 Add to cart
2
image
apr4403 - Scale Control Insert/float Chamber
View Part Info
$15.12 Add to cart
20
image
apr4405 - Float Cover
View Part Info
$15.12 Add to cart
7
image
apr4040 - Water Valve. Can Also Use A01-0814-148
View Part Info
$69.99 Add to cart
8
image
apr4004 - In Line Strainer
View Part Info
$4.99 Add to cart
9
image
APR4001 - Saddle Valve For Aprilaire
View Part Info
$19.99 Add to cart

Other Parts

Ref.ImagePart No & DescriptionPrice
image
apr4280 - Shock Arrestor
View Part Info
$129.20 Add to cart
image
GA50 - Relay Current Sensing
View Part Info
$36.00 Add to cart
15
image
APR4332 - Damper Assembly
View Part Info
$27.96 Add to cart
16
image
APR4409 - Name Plate Model 400
View Part Info
$13.57 Add to cart
17
image
APR4408 - Hole Plug Model 400
View Part Info
$7.75 Add to cart
18
image
apr4336 - Resistor Case And Manual
View Part Info
$10.63 Add to cart
4
image
APR4404 - Base Model 400
View Part Info
$87.96 Add to cart
6
image
APR4410 - Water Level Sensor
View Part Info
$29.46 Add to cart

Transformers

Ref.ImagePart No & DescriptionPrice
12
image
apr4010 - Transformer For Aprilaire
View Part Info
$28.40 Add to cart

Tubing

Ref.ImagePart No & DescriptionPrice
image
qbp28115205 - Flexible Bypass Hose 36 Inch
View Part Info
$9.99 Add to cart
11
image
apr4335 - Feed Tube With Compression Sleeve
View Part Info
$9.33 Add to cart

Accessories for all Humidifiers:

Chemicals for all Humidifiers:

Ref.ImagePart No & DescriptionPrice
image
FSRM6 - Humidafresh Rainforest Mist Water Treatm
View Part Info
$6.24 Add to cart
image
AC802 - Humidifier Bacteriostatic Water Treatmen
View Part Info
$6.82 Add to cart
image
1T-6 - Humdf Water Treatment32 Oz
View Part Info
$5.18 Add to cart
image
FSCA6 - Humidafresh Cinnamon Apple Water Treatme
View Part Info
$6.24 Add to cart
image
AC816 - Extra Strength Humidifier Cleaner
View Part Info
$5.19 Add to cart
image
FSFV6 - Humidafresh Vanilla Water Treatment
View Part Info
$6.24 Add to cart
image
3US-6 - Water Treatment Cleaner
View Part Info
$5.01 Add to cart
image
1PC-RPS - Humidifier Plastic Cleaner
View Part Info
$0.00 Not Available

Complete Units for all Humidifiers:

Ref.ImagePart No & DescriptionPrice
image
HAP-440 - Holmes Complete Hepa Air
View Part Info
$49.99 Add to cart

Other Parts for all Humidifiers:

Ref.ImagePart No & DescriptionPrice
image
MSP-100V - Oem Portable Stereo Speaker
View Part Info
$16.99 Add to cart