FilterTone Audible HVAC “Dirty” Furnace Filter Alarm: NEW w/ Instructions

The FilterTone Audible “Dirty” Furnace Filter Alarm is a new, never-used device designed to alert homeowners when their furnace filter needs to be cleaned or replaced. This filter whistle is specifically designed for furnace applications, with easy-to-follow instructions provided. It is a convenient and reliable solution for maintaining indoor air quality and ensuring optimal heating efficiency in your home.

40000 BTU 80% AFUE 2-Stage LP/Natural Gas Furnace, Multi-Positional 9-Speed R32

40,000 BTU, 80% AFUE natural gas furnace. For cooling functionality, this furnace must be paired with an outdoor AC or heat pump condenser unit and matching indoor evaporator coil. The tonnage of the AC should not exceed what tons the furnace blower is rated for; this information can be found in the spec tables below or in the pictures of each model above.

60000 BTU 96% AFUE 2-Stage LP/Natural Gas Furnace, Multi-Positional 9-Speed R32

60,000 BTU, 96% AFUE natural gas furnace. For cooling functionality, this furnace must be paired with an outdoor AC or heat pump condenser unit and matching indoor evaporator coil. The tonnage of the AC should not exceed what tons the furnace blower is rated for; this information can be found in the spec tables below or in the pictures of each model above.