Free Shipping on orders over $99 | FREE 365-DAY RETURNS
Filters Fast Logo Header
Replacement for Model GeneralAire SL-16

GeneralAire 12500 Humidifier Air Pressure Switch


Retail: $89.85 /ea
You Save: 33%
As low as
Retail: $89.85
You Save: 33%
Special Order. Ships in 5 to 6 business days. Warning IconView shipping restrictions

The GeneralAire 12500 is the correct replacement for the following humidifier:

  • GeneralAire 1099 Flow Through Bypass Humidifier
  • GeneralAire 570 Bypass Humidifier
  • GeneralAire SL-16 Streamline Bypass Humidifier

The GeneralAire 12500 Humidifier Air Pressure Switch is also known as part number 7021 for the 1099 Bypass Humidifier. This air pressure proving switch prevents operation of the humidifier if there is no air flow in the duct, and helps to prevent moisture build-up in the duct system. On furnaces with a 2-speed blower motor or when wiring within your furnace is not practical, the GeneralAire 1099 Humidifier and the air pressure switch may be wired from a continuous 115-volt power source.

General Aire 12500 Air Pressure Switch Replacement Specifications:

  • Part 7021
  • Range: .05" W.C.
  • Prevents moisture build-up
  • Fits GeneralAire 1099 Bypass Humidifier

The on/off switch along with the GeneralAire Air Pressure Switch can be installed in series with the 115 volt solenoid valve on the hot or black wire. The GeneralAire 12500 Air Pressure Proving Switch will detect the operation of the furnace and supply power to the humidifier. GeneralAire is also known by the following spelling variations: General Aire, General Air and GeneralAir.

Compatible Models:

The GeneralAire 12500 Humidifier Air Pressure Switch is correct replacement for the following model numbers:

BrandModel NumberDescription
GeneralAire GeneralAire 1099 Humidifier part
GeneralAire GeneralAire 570 Humidifier part
GeneralAire GeneralAire SL-16 Humidifier part
No results for {X}

Related Categories:

Product Availability

Please provide your e-mail address below to receive a notification when this product becomes available:


Thanks! We'll send you a notification when this product is available!