All Humidifier Parts
Other replaceable components for all Aprilaire model humidifiers. Distribution trays, scale control insert more. All parts are shipped in "single" carton quantities with the exception of #45 Water Panel
4793 Maintenance Kit for Aprilaire Model 550
This kit includes everything you need to make your Aprilaire Model 550 Series like new: #10 water panel, #4217 Scale Control Insert (black plastic fra...
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4837 Maintenance Kit for Aprilaire Model 560
This kit includes everything you need to make your Aprilaire Model 560 like new: #35 water panel, #4236 Scale Control Insert (black plastic frame), #4...
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4788 Maintenance Kit For Aprilaire Model 400
The kit includes everything you need to make your Aprilaire 400 like new: Part number 45 water panel (2 pack for one season), #4403 Scale Control ...
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4785 Maintenance Kit For Aprilaire Models 350 & 360
The kit includes everything you need to make your Aprilaire 350 and 360 like new: #35 water panel, #4181 Scale Control Insert (black plastic frame...
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Part # 10 Water Panel Evaporator
Fits Models 550, 550A, 500, 110 and 220. Water Panel Evaporators are the heart of your humidifier and the component which generates the important hum...
Buy any 2 of the same water panel and receive free shipping. (Shipping to U.S. only)
4839 Maintenance Kit For Aprilaire Model 600
This kit includes everything you need to make your Aprilaire Model 600 like new: #35 water panel, #4330 Scale Control Insert (black plastic frame), #4...
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Part # 35 Water Panel Evaporator
Fits 600 Series, 700 Series, 560 Series. 350 and 360 units. Water Panel Evaporators are the heart of your humidifier and the component which gene...
Buy any 2 of the same water panel and receive free shipping. (Shipping to U.S. only)
4792 Maintenance Kit for Aprilaire Model 500
This kit includes everything you need to make your Aprilaire Model 500 like new: #10 water panel, #4640 Scale Control Insert (black plastic frame), #4...
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4750 Maintenance Kit for Aprilaire Model 700
This kit includes everything you need to make your Aprilaire Model 700 like new: #35 water panel, #4236 Scale Control Insert (black plastic frame), #4...
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4403 Scale Control Insert - For Model 400
This is the u-shaped component which encases the Water Panel. It directs any built-up mineral deposits back into the water panel and it prevents ...
4405 Float Cover - For Model 400
This acts as a guide to keep the two #4406 Float Assemblies in place as they rise and drop.
4406 Float Assembly - For Model 400
These float in the Scale Control Insert/Float Chamber to control the supply of water. When the water level is high enough, the right hand float tu...
4217 Scale Control Insert - For Model 550, 550A & 568
This is the u-shaped component which encases the Water Panel Evaporator. Their purpose is to direct any mineral which builds up back into the evap...
4640 Scale Control Insert - For Model 500
This is the u-shaped component which encases the Water Panel Evaporator. Used with water panel number 10 and water distribution tray part numb...
4330 Scale Control Insert - For Model 600
This is the u-shaped component which encases the Water Panel Evaporator. Used with water panel number 35 and the water distribution tray n...
4236 Scale Control Insert - For Models 560, 560A, 568, 700, 760, 760A & 768
These are the u-shaped component which encases the Water Panel Evaporator. Used with number 35 water panel and 4277 water distribution tray for mode...
4407 Water Distribution Tray - For Model 400
This distributes water evenly to all portions of the water panel. It attaches to the U-shaped Scale Control Insert part number 4403. Used wi...
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...
4277 Water Distribution Tray - For Models 560, 560A & 568
This is the water distribution tray which distribute water evenly to all portions of the water panel. They attach to the u-shaped scale control in...
4218 Water Distribution Tray - For Model 550, 550A & 558
These are the water distribution trays which distribute water evenly to all portions of the water panel. They attach to the u-shaped scale control...
4331 Water Distribution Tray - For Model 500 & 600
This is the water distribution tray which distributes water evenly to all portions of the water panel. They attach to the u-shaped scale control i...
4246 Water Distribution Tray - For Models 700, 760, 760A & 768
This is the water distribution tray which distribute water evenly to all portions of the water panel, part number 35. They attach to the u-shaped sc...
4226 Water Feed Tube - For Models 550, 550A & 558
Water Feed Tube w/Compression Sleeve. Connects to the solenoid valve and delivers water to the distribution tray, part number 4218. Also s...
4235 Feed Tube & Nozzle - For Model 700, 760, 760A & 768
This is the water feed tube which attaches to the outlet side of the solenoid valve and the feed tube slides into a nozzle. The nozzle attaches to...
4266 Feed Tube with Compression sleeve for the model 560, 560A & 568 humidifier
The feed tube and compression sleeve for the Models 560, 568 and 560A. This connects to the solenoid valve, part number 4040, and attaches to th...
4335 Feed Tube W/Sleeve - For Model 400, 500 & 600
This is the water feed tube inside the humidifier, which connects the solenoid valve and then to the water distribution tray at the top of the uni...
4184 Nozzle - For Model 350, 360, 550 and 560 Series
This is the component where the feed tube slides into at the top of the water panel evaporator assembly. The nozzle attaches to the water distribu...
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...
4231 Yellow Orifice
These are the tiny nylon components which, accurately meter the flow of water into your humidifier. They allow a specific amount of water to go into t...
4021 Red Orifice for Models 112 and 224
These are the tiny nylon components which accurately meter the flow of water into your humidifier. They allow a specific amount of water to go int...
4007 White Orifice for Models 110, 220, & 330
Orifices are the tiny nylon components which accurately meter the flow of water into your humidifier. They allow a specific amount of water to go ...
4040 24 Volt Solenoid Valve
The solenoid valve allows water to come into your humidifier. This valve can be used on all Aprilaire humidifiers ...
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....
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...
9960 Weather Station
Digital Weather Station. Operates on one AAA battery. Displays current temperature and relative humidity. Displays in Celsius or Fah...
4223 Drain Spud - For Models All 500 & 600 Series
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...
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...
4039 Humidistat Adapter Plate
This is the component which allows your contractor to install a manual humidistat (No. 4016) into the return air ductwork of your heating/cooling ...
4187 Drain Spud - For Models 350 and 360
This is the plastic fitting which attaches to the base of the housing of your Model 350 or 360 humidifier. It is designed to allow for the connect...
4336 Manual Mode Resistor
The automatic control uses either the manual mode resistor or an outdoor temperature sensor (part number 8052). It needs one or...
8052 Outdoor Temperature Sensor
The automatic control uses either the manual mode resistor (part number 4336)or an outdoor temperature sensor. It needs one or the ...
4185 Baffle - For Model 350 and 360
This is the component which attaches to the inside of the housing and secures the water nozzle (part number 4184) in place.
4087 Float Assembly for Model 445
This assembly is used only in the models 445, 445A and 448 to control the water flow into the reservoir. It includes the float valve, float stem a...
4091 Hose and Nozzle - For Models 445, 445A & 448
This is the water feed tube and nozzle which attaches to the pump assembly. It then attaches to the water distribution tray, part number 4081 at t...
4088 Float Only for Model 445, 445A & 448
This assembly is used only in the models 445, 445A and 448 to control the water flow into the reservoir. This is the square float that sits inside...
4092 Reservoir Divider - For Model 445
This is the component which divides the reservoir liner, (part number 4093) and attaches to the bottom of your Model 445, 445A or 448 Humidifier.
4093 Reservoir Liner - For Model 445
This is the liner that is in the bottom of the Models 445, 445A and 448. Also used with the reservoir divider, part number 4092.
4101 Reservoir Bolt Kit - For Model 445
Reservoir Bolt Kit for the models 445, 445A and 448 humidifiers. This attaches the bottom reservoir to the upper half of the humidifier. ...
4181 Scale Control Insert - For Models 350 & 360
This is the u-shaped component which encases the Water Panel. Their purpose is to direct any mineral which builds up back into the evaporative p...
4166 Replacement Knob - For Model 445
This is a replacement knob, which attaches to the front cover of the housing for the Models 445, 445A and 448. Two knobs are required for each uni...
4182 Water Distribution Tray - For Models 350 & 360
This is the water distribution tray which distributes water evenly to all portions of the water panel, (part number 35). It attaches to the u-shaped...
4148 Impellor - For Model 445
This is the tiny propeller that attaches to the shaft of the pump assembly. It drives water up the hose (part number 4091) to the water distri...
4183 Distribution Tray Cover - For Models 350 & 360
This is a plastic cover which snaps into the top of the water distribution tray (part number 4182).