Aprilaire Model 445 Parts

Aprilaire has discontinued many parts for the model 445. We have several in stock and update the website several times per day for accuracy.

Aprilaire Humidifier Model 445, 445A & 448 Parts List
Diagram #	Name	Part #	Price
1	Saddle Valve	4001	$13.18
2	Float, Float Valve Body and Arm	4087	$75.02
3	Float (only)	4088	$21.26
4	Pump Assembly/Motor Board	4089	$175.00
5	Pump Parts Kit	4100	$58.76
6	Impellor (included in Pump Assembly)	4148	$17.52
7	Knobs (Top Cover)	4166	$8.95
8	Fan Blade	4090	$12.75
9	Hose and Nozzle	4091	$15.10
10	Water Distribution Tray	4081	$23.80
11	Water Panel Evaporator	12	$12.25 or 3/$32.85
12	Scale Control Insert	4080	$23.00
13	Reservoir Divider	4092	$19.50
14	Reservoir Liner	4093	$19.25
15	Reservoir	4165	$88.82
16	Reservoir Bolt Kit	4101	$13.82
17	Electrical Bracket and Grommet	4095	$16.50
18	Power Cord	4261	$22.52
19	Screw and Clip Set - Discontinued	4086	Discontinued
20	Manual Humidistat	4016	$45.00
21	Metal Frame	4171	$70.00
22	Top Cover (Knobs are separate)	4162	$92.00
23	Lower Housing	4164	$92.00
24	120 Volt Humidifier Control	4258	$78.86
	Auto-Trac Humidistat	56	$95.00
	Auto-Trac Sensor and Shield	4278	$14.95
	Humidistat Adapter Plate	4039	$5.70
	Motor Board Only	4159	$47.00
	Float Valve Rubber Stopper	4269	$4.50