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Duct Pressure Switches

43 results found that include 43 Products

Install a duct pressure switch from Grainger to help your HVAC system do its job. An air switch senses positive, negative or differential air pressure and actuates an internal switch. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners, duct heaters, humidifiers, exhaust fans and duct booster fans. Rely on Grainger for a wide range of duct pressure switch options.Close

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  • Switch,Air Sensing

    COLUMBUS ELECTRIC

    Switch,Air Sensing

    Item # 2E4621

    Web Price
    $24.30 / each
  • Pressure Sensing Switch,1-1/2" D

    SUPCO

    Pressure Sensing Switch,1-1/2" D

    Item # 407L091

    Web Price
    $14.30 / each
  • Switch,Air Sensing

    CLEVELAND CONTROLS

    Switch,Air Sensing

    Item # 3ZM921

    Web Price
    $20.70 / each
  • Switch,Air Sensing

    CLEVELAND CONTROLS

    Switch,Air Sensing

    Item # 4XB701

    Web Price
    $15.85 / each
  • Switch,Air Sensing

    CLEVELAND CONTROLS

    Switch,Air Sensing

    Item # 3ZM961

    Web Price
    $12.00 / each
  • Air Sensing Switch,Adjustable

    CLEVELAND CONTROLS

    Air Sensing Switch,Adjustable

    Item # 6XPX71

    Web Price
    $11.90 / each
  • Air Sensing Switch,Fixed

    CLEVELAND CONTROLS

    Air Sensing Switch,Fixed

    Item # 6XPX91

    Web Price
    $14.10 / each
  • Air Sensing Switch,Auto Reset,SPDT

    POWERS CONTROLS

    Air Sensing Switch,Auto Reset,SPDT

    Item # 40PN351

    Web Price
    $61.75 / each
  • Pressure Switch,Differential,0.8to 4InWC

    DWYER INSTRUMENTS

    Pressure Switch,Differential,0.8to 4InWC

    Item # 4FTP21

    Web Price
    $27.60 / each
  • Switch,Air Sensing

    CLEVELAND CONTROLS

    Switch,Air Sensing

    Item # 3ZM931

    Web Price
    $27.40 / each
  • Differential Air Pressure Switch

    JOHNSON CONTROLS

    Differential Air Pressure Switch

    Item # 40G3631

    Web Price
    $76.50 / each
  • Pressure Switch,Differential,0.12to1.6In

    DWYER INSTRUMENTS

    Pressure Switch,Differential,0.12to1.6In

    Item # 4FTN91

    Web Price
    $27.30 / each
  • Airflow Switch,Auto Reset,SPDT

    SIEMENS

    Airflow Switch,Auto Reset,SPDT

    Item # 2KGR41

    Web Price
    $60.50 / each
  • Switch,Air Sensing

    CLEVELAND CONTROLS

    Switch,Air Sensing

    Item # 3ZM941

    Web Price
    $28.70 / each
  • Pressure Switch,Differential,0.2to 2InWC

    DWYER INSTRUMENTS

    Pressure Switch,Differential,0.2to 2InWC

    Item # 4FTP11

    Web Price
    $27.30 / each
  • Differential Air Pressure Switch

    JOHNSON CONTROLS

    Differential Air Pressure Switch

    Item # 40G3651

    Web Price
    $68.75 / each