Model 440 Series Parts
9960 Weather Station
Digital Weather Station. Operates on one AAA battery. Displays current temperature and relative humidity. Displays in Celsius or Fah...
4038 Drain Spud - For Models 110, 112, 220, 224 & 440
This is the plastic fitting which attaches to the base of the housing of your humidifier. It is designed to allow for the connection of the 1/2" d...
4079 Feed Tube & Nozzle - For Models 350, 360 & 440
This is the water feed tube which attaches to the outlet side of the solenoid valve. It then slides into a nozzle (part number 4184) which attache...
4655 Manual Humidistat
Manual Humidistat for Aprilaire Humidifiers. Replaces Model 4016. Can be installed on the wall or return duct-mounted.
4232 Blue Orifice
This is the tiny nylon component which accurately meters the flow of water into your humidifier. It allows a specific amount of water to go into the...
4004 In Line Strainer
The In-Line Strainer is a tiny strainer that fits in the inlet fitting of the water solenoid valve which allows water to enter your humidifier....
4081 Water Distribution Tray - For Models 440, 445, 445A & 448
These are the water distribution trays which distribute water evenly to all portions of the evaporative panel. They attach to the u-shaped scale c...
4001 Saddle Valve
This is the self-tapping water valve that attaches to the water line in your home and supplies water to the Aprilaire Humidifier via copper tubing...
4040 24 Volt Solenoid Valve
The solenoid valve allows water to come into your humidifier. This valve can be used on all Aprilaire humidifiers ...
Part # 12 Water Panel Evaporator
Fits Models 440, 445, 445A, 448, 112 and 224. Water Panel Evaporators are the heart of your humidifier and the component which generates the im...
Buy any 2 of the same water panel and receive free shipping. (Shipping to U.S. only)
For the #45 water panels, purchase 2 boxes (4 water panels total) to receive free shipping.