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
Filter Base 24x25 Upflow/Horiz for Gas Furnaces