Water Air Vent (401488) 1/2"F X 3/4"M NPT
Filter Base 16X25 Upflow/Horiz for Gas Furnaces
Filter Base 20X25 Upflow/Horiz for Gas Furnaces
Filter Base 14X25 Upflow/Horiz for Gas Furnaces
Filter Base 16X20 For Heat Pump Air Handlers
Filter Base 20X20 For Heat Pump Air Handlers
Air Vent Automatic w/Built In Shut Off 3/4 & 1/2"NPT 150 psi Max Brass
Filter Base 20x25 For Heat Pump Air Handlers
Water Air Vent (401485) 3/4" M NPT
Filter Base 24X24 For Heat Pump Air Handlers
Automatic Air Vent Combination (3/4"nptm 1/2"nptf) 113021
Filter Base 24x25 Upflow/Horiz for Gas Furnaces