Residential or Commercial Filter Gage

Residential or Commercial Filter Gage
Code: FIL13640
Price: $39.87
Quantity in Basket: None
Residential or Commercial Filter Gage.

Provides a visual indication of the need to replace the air filters in forced air heating and cooling systems.

The gage is installed between the blower and the filter where a slight vacuum exists due to the air flow resistance of the air filter.
Air flowing into the gage, around the calibration screw, lifts a vane in proportion to the negative pressure in the blower compartment.
As the air filter loads, the vacuum increases, raising the vane to indicate a filter change is necessary.
Replaces Part Numbers:G-99, CARB13640.