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Filter Minder® Visual / Mechanical Indicators & Gauges

Filter Minder® HVAC Gauge


How It Works

The Filter Minder® HVAC Gauge uses a progressive, graduated indicator that monitors HVAC filters. As the filter restricts, the position indicator fills the window and locks at the highest filter restriction. The HVAC filter should be changed when the position indicator reaches the red zone.

The Filter Minder® should be reset whenever the service indicator is checked to determine HVAC filter restriction or when a new HVAC filter is installed. Push the reset button at the end of the service indicator, and the position indicator will return to zero.

Filter Minder® HVAC Indicator




Remote Mount (Brackets Available)
Grommet Mount
M10x1.5 Mount (Via Adaptor)

Unique Features

Can be configured to measure vaccum vs. atmosphere, pressure vs. atmosphere OR differential pressure.


  • Locking and non locking available
  • Standard Vacuum/Pressure Ranges: 0-1" H20 (2.5mbar), 0-2" H20 (5 mbar), 0-3" H20 (7.5mbar)
  • Operating Temperature: -40 to +250°F (-40 to +121°C)
  • Accuracy: ±10% at final lock  ±.5" H20
  • Material: Polycarbonate housing
  • First movement of indicator: .2" H20


  • Length:  2.9" (73mm)
  • Diameter:  3.0" (75mm)

A Few of Many Industries Served

Air Filtration Markets Served