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OFFERING THE HIGHEST QUALITY INDICATORS, GAUGES, SWITCHES AND SENSORS AVAILABLE

  • The Global Leader

    The Global Leader

    Filter Minder® - The Global Leader of air and fluid filtration monitoring solutions, offering:

    Threaded Mount Air Filter Restriction Indicator / Gauge

    -  Low-Dollar Cost, High-Value Add
    -  Superior Quality and Performance
    -  Solutions-Driven Portfolio
    -  Industry's Broadest Product Line
    -  Highest Level Customer Support
    -  Award Winning On-Time Delivery

     

    Got a problem?  Challenge Us.  We will find a solution.

  • Myth vs Fact

    Myth vs Fact


    Freightliner Truck On HighwayThe Filter Minder® filter monitoring device makes it easy for you to tell when it's time to change filters.  

    The myth is that an automotive air filter should be changed about every 6,000 miles, or when it "looks dirty."

    The fact is that a certain amount of dirt in an air filter actually increases its filtering efficiency by reducing the size of the holes in the filter media which helps stop smaller dirt particles.

    This means that instead of a maximum life of 6,000 miles, the typical air filter may actually last anywhere from 60,000 to 100,000 miles!

  • When To Service?

    When To Service?

    A Dirty Filter Element Is Better Than A Clean OneAir filter restriction is not time or miles dependent.

    Mileage of as much as 300,000 to as little as 5,000 miles have been reported when restriction is reached.

    It is important to know the highest full load restriction that occurred during the vehicle operation in order to service BEFORE the redline.  

    After an element has reached its redline value, it only takes a little more contaminant before high fuel consumption and poor engine operation occurs.  Don't Dust Your Engine!

  • Use A Filter?

    Use A Filter?

     

    A Variety of Engine Air FiltersThe Filter Minder® can be found on a wide variety of applications throughout the world, including:  Automotive - Truck - Construction - Agriculture - Compressors - Blowers - Hydraulics - Lawn and Garden - Irrigation Industries - Oil Fields - Marine.... or any industry that uses a filter.

Air Line Monitoring Just Got Easier!

  • INTRODUCING

    The Filter Minder® Air Line Filter and Indicator

    We are pleased to introduce a new addition to its portfolio of filter monitoring products.... the innovative, versatile and convenient Air Line Filter and Indicator. Click through the showcase to learn more and view the ALFI Animation.

  • Air Line Filter and Indicator
    Early Filter Life 

    In routine use, air flows through the Air Line Filter, trapping particles.

    The Air Line Filter and Indicator (ALFI) protects against harmful debris and contaminants in high pressure air lines in a wide variety of industrial, transportation and on-site applications requiring compressed air or gas.  

  • Air Line Filter and Indicator
    End of Life

    Extreme clogging will extend the red indicator (as device progresses towards full bypass mode) until it is fully extended, locked, and requires replacement. Build-up of debris will open the bypass to keep air flowing.

    When restriction becomes excessive, a bright red indicator deploys from the device, indicating it is time to change the filter.

    The filter cartridge is replaceable with a 1-1/4” wrench/socket and is ready again to protect your operating assets in just seconds.

Filter Minder® Product Portfolio

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  • Filter Minder® Product Portfolio
  • Visual / Mechanical Gauges and Indicators monitor the condition of engine air filters, fuel filters or other low vacuum/pressure applications. The indicators are available in a single
    Read More

    Visual / Mechanical
    Indicators & Gauges

  • Visual / Electrical Switches monitor the condition of engine air filters, fuel filters or other low to medium vacuum/pressure applications. The indicators are available in:(1) single
    Read More

    Visual / Electrical
    Switches

  • Electronic Pressure Sensors monitor various vacuum or pressure conditions ranging from cabin pressures to air filter or fuel filter restriction levels. Filter Minder® sensors feature
    Read More

    Electronic
    Sensors

  • A wide array of accessories are available to complement Filter Minder's® product line up, including LED displays, custom fittings, mounting brackets, hoses and grommets.  
    Read More

    Accessories / Related
    Products

Troubleshooting

Troubleshooting HVACAir Filter and HVAC Service Indicators and Gauges

  • To determine if the Filter Minder® is working properly, if the window on a single position service indicator is showing red, or the position indicator on a graduated service indicator is showing in the window, reset the service indicator by pushing at the end of the indicator. If it resets to zero, the service indicator is operating properly.
    • Remove the service indicator.
    • Pull a vacuum on the service indicator until the position indicator reaches red zone. If the position indicator does not lock in the red zone, replace the service indicator. Push the reset at the end of the service indicator to reset to zero. If it does not reset, replace the service indicator. Again, pull a vacuum on the service indicator until it locks in the red zone.
    • Re-install the service indicator.
    • Push the reset at the end of the service indicator. If it resets to zero, the service indicator and fitting assembly is working properly.
    • If the position indicator fails to reset fully to zero, check the air cleaner fitting, as the safety filter in the fitting may be plugged. If plugged, replace the fitting. Replacement fittings with safety filters are available from Filter Minder®. Some fittings are welded to the air cleaner, and cannot be removed. In this case, it will be necessary to drill a hole through the fitting, and add a new adapter fitting with safety filter. Be sure to collect the metal shavings to prevent them from getting into the air induction system. Note: Some systems use rubber grommet mount service indicators, which do not utilize a fitting.

Air Filter Switch Service Indicators

Troubleshooting Air Filter Switch

 

  • Check the mechanical operation of the Filter Minder® by following the above instructions for service indicators and gauges.
  • To check the operation of the switch, pull a vacuum on the Filter Minder® until the position indicator locks in the red zone. The warning light in the dash should illuminate.
  • If the warning light fails to illuminate, proceed in checking proper operation of the switch, wiring, and light bulb per normal electrical maintenance procedures.
  • Switch Indicators are available in normally open or normally closed switch designs. See label for switch details.

 fuel straight fitting shad


 Fuel Filter Service Indicator

  • To determine if the Fuel Filter Minder® is working properly, removal of the service indicator is usually not recommended. It can be checked if there is some fuel filter restriction, and the position indicator is showing in the window of the service indicator. Push the reset at the end of the service indicator so that the yellow position indicator returns to zero. Then operate the engine at high idle, and the position indicator should move and lock in the same position. Note: A road test may be necessary to duplicate the reading.
  • Check for fuel leakage from the service indicator and fitting. If leaking, replace the indicator and fitting assembly. Note: The fuel filter service indicator is supplied complete with a new fitting that has been assembled by the manufacturer. Do not install a new service indicator to an old fitting.
  • If the position indicator is not showing in the clear window, it is possible that there is not enough fuel filter restriction for the service indicator to read. To determine if it is working properly, remove the complete Fuel Filter Minder® assembly including fitting from the fuel system.
  • Pull a vacuum on the service indicator until the position indicator reaches the red zone.
  • If the position indicator locks in the red zone, it is working properly. If not, replace the service indicator and fitting assembly.
  • Re-install the service indicator and fitting assembly, and push the reset at the end of the service indicator.
  • Always install a new fuel filter service indicator and fitting complete. The Fuel Filter Minder® and fitting are assembled to the correct specifications at the time of manufacture.