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Aprilaire 558

37 Parts Available For This Model

Part Categories for Aprilaire 558:

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

Accessories for all Humidifiers:

Chemicals | Complete Units

Model Description

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

Owner's Manuals for Aprilaire 558:

Complete Units

Part No & DescriptionPrice
apr600A - Aprilaire Complete Humidifier
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$209.19

Controls

Part No & DescriptionPrice
APR56 - Humidistat For Autotrac Has Outdoor Temp
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$117.95
apr4305 - Gasket Automatic Humidifier Control
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$4.73

Covers

Part No & DescriptionPrice
apr4225 - Cover Latch Spring
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$9.33
apr4222 - Cover With Latch And Label
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$77.90

Filters

Part No & DescriptionPrice
a10wr-rps - Wicking Style Filter #709
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$12.12
aprA10-RPS - Aprilaire #10 Pad Hard Wick
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$8.31

Frames

Part No & DescriptionPrice
APR4598 - Ionizer Frame Assembly
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$173.45
apr4217 - Filter Frame For Aprilaire
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$20.56
APR4218 - Distributor Tray For
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$18.82

Hoses, Valves, and Regulators

Part No & DescriptionPrice
apr4229 - Saddle Valve Adapter
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$51.54
apr4004 - In Line Strainer
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$4.99
APR4001 - Saddle Valve For Aprilaire
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$19.99
APR4231 - Orifice Yellow
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$4.20
apr4184 - Nozzle For Aprilaire
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$10.26
apr4223 - Drain Spud For Aprilaire
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$4.90
apr4040 - Water Valve. Can Also Use A01-0814-148
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$69.99

Other Parts

Part No & DescriptionPrice
apr4039 - Plate Humidstat
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$9.33
apr4280 - Shock Arrestor
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$129.20
APR51 - Current Sensing Relay
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$38.68
GA50 - Relay Current Sensing
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$36.00
APR4655 - Manual Humidistat
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$52.94
APR4219 - Base 550
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$75.21

Panels

Part No & DescriptionPrice
APR4220 - End Panel Model 550
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$57.12
APR4221 - Duct Panel
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$52.99

Temperature Gauges

Part No & DescriptionPrice
apr8052 - Outdoor Temperature Sensor
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$13.06

Transformers

Part No & DescriptionPrice
apr4010 - Transformer For Aprilaire
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$29.28

Tubing

Part No & DescriptionPrice
apr4226 - Feed Tube With Compression
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$13.80

Accessories for all Humidifiers:

Chemicals

Part No & DescriptionPrice
FSRM6 - Humidafresh Rainforest Mist Water Treatm
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$4.99
AC802 - Humidifier Bacteriostatic Water Treatmen
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$7.50
1T-6 - Humdf Water Treatment32 Oz
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$6.25
FSCA6 - Humidafresh Cinnamon Apple Water Treatme
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$6.24
AC816 - Extra Strength Humidifier Cleaner
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$6.25
FSFV6 - Humidafresh Vanilla Water Treatment
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$4.99
3US-6 - Water Treatment Cleaner
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$6.25

Complete Units

Part No & DescriptionPrice
HAP-440 - Holmes Complete Hepa Air
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$42.99