BYPASS & POWER-FAN HUMIDIFIER ACCESSORIES AND PARTSPriceQuantity
Aprilaire Current Sensing Relay
Aprilaire 50
24v Relay - Turns Aprilaire Humidifiers on With Call for Fan & Humidification
$28.99  
Honeywell Sail Switch
Honeywell S688A1007
Air Flow Switch - For Humidifiers Installed on Variable Speed Furnaces/Air Handlers
$41.99  

BYPASS & POWER-FAN HUMIDIFIER INSTALLATION KITSPriceQuantity
AHA075 Installation Kit
Alpine Home Air Products KIT075
Installation Kit for Bypass-Type Humidifiers
$44.99  

BYPASS & POWER-FAN HUMIDIFIER REPLACEMENT PADS / FILTERSPriceQuantity
AA 10 Multi-Pack
Aprilaire 10 RP (10-Pack)
(10-Pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 110, 220, 500A, 500M, 550, 558.
$60.99  
Aprilaire Humidifier Pad
Aprilaire 10 RP (2-Pack)
(2-Pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 110, 220, 500A, 500M, 550, 558.
$15.99  
AA 10 6-Pack 2 Aprilaire 10 RP (6-Pack)
(6-Pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 110, 220, 500A, 500M, 550, 558.
$38.99  

DIGITAL THERMOSTATSPriceQuantity
Aprilaire 8570 Front
Aprilaire 8570
Universal Programmable Thermostat - Two Stage Heat Two Stage Cool
$204.99  

TOOLSPriceQuantity
Imperial 174-F Tube Cutters
Imperial 174-FSP
3/8" to 1 1/8" Copper Tubing Cutter
$55.99  
Product Image Malco HC2
2 Inch to 20 Inch Diameter Hole Cutter
$63.99