APRILAIRE 440

42 Parts Available For This Model

Everything with the order process was easy. It arrived earlier than expected. It was easy to install, and working great.

March 5, 2024

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Part Categories for APRILAIRE 440:

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

Accessories for all Humidifiers:

Accessories | Chemicals | Tubing

Model Description

Parts are available, however complete unit is no longer available and is re...

Owner's Manuals for APRILAIRE 440:

Owner's Manual (General) [pdf]

Complete Units

Ref.	Image	Part No & Description	Price
		apr600A - Aprilaire Complete Humidifier Quantity: 1 View Part Info	$262.65	In stock

Controls

Ref.	Image	Part No & Description	Price
		APR56 - Humidistat For Autotrac Has Outdoor Temp Quantity: 1 View Part Info	$183.62	In stock
		apr4305 - Gasket Automatic Humidifier Control View Part Info	$7.80	In stock
6		apr4166 - Knob (top Cover) Quantity: 1 View Part Info	$19.99	Out of Stock

Covers

Ref.	Image	Part No & Description	Price
14		apr4162 - Top Cover For Aprilaire View Part Info		Not Available More information

Filters

Ref.	Image	Part No & Description	Price
9		a12 - Awp-12 #12 Pad Hard Wick Quantity: 1 View Part Info	$9.49	In stock

Frames

Ref.	Image	Part No & Description	Price
8		apr4081 - Distribution Tray For Quantity: 1 View Part Info		Not Available More information
13		apr4171 - Metal Frame Quantity: 1 View Part Info		Not Available More information

Hardware

Ref.	Image	Part No & Description	Price
		APR4066 - Screw And Clip Set View Part Info		Not Available More information
2		apr4086 - Screw And Clip Set View Part Info		Not Available More information

Hoses, Valves, and Regulators

Ref.	Image	Part No & Description	Price
		apr4038 - Drain Spud Kit For Quantity: 1 View Part Info		Not Available More information
		APR4006 - O Ring For Bull View Part Info	$9.99	In stock
		apr4103 - Stainer For Bullet Shaped Solenoid View Part Info	$19.49	Special order
1		APR4001 - Saddle Valve For Aprilaire View Part Info	$9.99	In stock
3		apr4232 - Orifice Blue Quantity: 1 View Part Info	$2.66	In stock
4		apr4040 - Water Valve. Read External Info View Part Info	$66.78	In stock
5		apr4004 - In Line Strainer Quantity: 1 View Part Info	$3.99	In stock
7		apr4079 - Feed Tube And Nozzle View Part Info	$18.08	In stock
16		apr4167 - Solenoid Cover View Part Info	$104.96	In stock

Other Parts

Ref.	Image	Part No & Description	Price
		GA50 - Relay Current Sensing Quantity: 1 View Part Info	$43.96	In stock
		APR51 - Current Sensing Relay Quantity: 1 View Part Info	$47.73	In stock
		apr4280 - Shock Arrestor View Part Info	$129.20	In stock
		apr4039 - Plate Humidstat View Part Info	$13.50	In stock
		APR4040OEM - Water Solenoid Vavle ( Oem ) View Part Info	$126.44	In stock
4		SUHS24 - Solenoid View Part Info	$33.00	In stock
10		apr4080 - Scale Control Insert Quantity: 1 View Part Info		Not Available More information
12		APR4655 - Manual Humidistat View Part Info	$79.54	In stock
15		apr4163 - Lower Housing View Part Info	$120.49	Special order

Temperature Gauges

Ref.	Image	Part No & Description	Price
		apr8052 - Outdoor Temperature Sensor View Part Info	$16.12	In stock

Transformers

Ref.	Image	Part No & Description	Price
11		apr4010 - Transformer For Aprilaire Quantity: 1 View Part Info	$42.54	In stock

Accessories for all Humidifiers:

Accessories

Ref.	Image	Part No & Description	Price
		AC-912 - Pan Tabets ( 6 Pack) View Part Info	$13.65	In stock
		246 - Humidifier Treatment View Part Info	$15.65	In stock
		T812 - Cutting Board 8 X12 Inch View Part Info	$4.99	In stock

Chemicals

Ref.	Image	Part No & Description	Price
		FSRM6 - Humidafresh Rainforest Mist Water Treatm Quantity: 1 View Part Info	$11.03	In stock
		FSCA6 - Humidafresh Cinnamon Apple Water Treatme Quantity: 1 View Part Info	$11.15	In stock
		FSFV6 - Humidafresh Vanilla Water Treatment Quantity: 1 View Part Info	$5.13	In stock
		AC802 - Humidifier Bacteriostatic Water Treatmen Quantity: 1 View Part Info	$11.28	In stock
		1T-6 - Humdf Water Treatment32 Oz Quantity: 1 View Part Info	$11.80	In stock
		AC816 - Extra Strength Humidifier Cleaner Quantity: 1 View Part Info	$11.22	In stock
		FSOB6 - Humidafresh Ocean Breeze Quantity: 1 View Part Info	$5.13	In stock
		3US-6 - Water Treatment Cleaner View Part Info	$11.22	In stock

Tubing

Ref.	Image	Part No & Description	Price
		21581001 - Worm Gear Clamp, 5 5/8 - 6 1/2 Quantity: 1 View Part Info	$1.99	In stock

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