Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).

Duct Pressure Switches

43 results found that include 43 products

Filter Results By

Results per page:  16 | 32 | 48
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 4XB70
  • Mfr. Model # RFS-4150
  • Air Sensing Switch, General Purpose, SPDT, Pressure Setting Range 0.12-5.0 In WC, Integral Barbed Sample Line...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM92
  • Mfr. Model # AFS-222
  • General Purpose Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.05 to 12.0 Inches, Sample...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM96
  • Mfr. Model # RSS-495-011
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.20 to 1.0 Inches, Sample Line Connector...More

Air Sensing Switch,Adjustable
  • CLEVELAND CONTROLS
  • Item # 6XPX7
  • Mfr. Model # NS2-0000-05
  • Air Sensing Switch, HVAC OEM, Differential (In. WC) 0.03 to 0.09, SPDT Switch Type, Pressure Setting Range...More

Switch,Air Sensing
  • COLUMBUS ELECTRIC
  • Item # 2E462
  • Mfr. Model # GRH3AD
  • Multi Purpose Air Sensing Switch, Switch Action SPDT, Differential 0.02 to 0.8 Inches WC, Mounting Location...More

Air Sensing Switch,Fixed
  • CLEVELAND CONTROLS
  • Item # 6XPX9
  • Mfr. Model # DFS-221-112-395
  • Air Sensing Switch, HVAC, SPDT Switch Type, Pressure Setting Range (In. WC) 0.05, Electrical Rating 300 VA...More

Pressure Switch,Fixed .02
  • ROBERTSHAW
  • Item # 6XJU9
  • Mfr. Model # 2374-506
  • Pressure Sensing Switch, HVAC/General Purpose, Switch Type SPDT, Pressure Setting Range (In. WC) 0.02,...More

Switch,Fan Proving
Dif Pressure Switch,Adjustable
  • DWYER INSTRUMENTS
  • Item # 24Z008
  • Mfr. Model # ADPS-08-2-N
  • Differential Pressure Switch, Air, Pressure Setting Range (In. WC) 0.08 to 1.2, Sample Line Connector Barb...More

Switch,Dryer Boosting
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G366
  • Mfr. Model # P32AF-2C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .009 To .075, SPDT Switch Type,...More

Pressure Switch,Differential,0.12to1.6In
  • DWYER INSTRUMENTS
  • Item # 4FTN9
  • Mfr. Model # ADPS-04-2-N
  • Pressure Switch, Differential, 0.12 to 1.6 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM93
  • Mfr. Model # AFS-405
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.05 to 12.0 Inches, Sample Line Connector...More

Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G365
  • Mfr. Model # P32AF-1C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .018 To .120, SPDT Switch Type,...More

Pressure Switch,Differential,0.2to 2InWC
  • DWYER INSTRUMENTS
  • Item # 4FTP1
  • Mfr. Model # ADPS-03-2-N
  • Pressure Switch, Differential, 0.2 to 2.0 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM97
  • Mfr. Model # RSS-498-013
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 1.0 to 4.0 Inches, Sample Line Connector...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM94
  • Mfr. Model # AFS-460
  • Air Sensing Switch, Switch Action SPST, Pressure Setting Range WC 0.4 to 12.0 Inches, Sample Line Connector...More

Pressure Sensing Switch,.25-1.0
  • ROBERTSHAW
  • Item # 6XJU0
  • Mfr. Model # 2374-495
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) .10, Switch Type SPDT, Pressure Setting...More

Switch,Duct Pressure
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G363
  • Mfr. Model # P32AC-2C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .045 To .195, SPDT Switch Type,...More

Pressure Sensing Switch,Adjustable
  • TJERNLUND
  • Item # 14U189
  • Mfr. Model # PS2501
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) .02, SPDT Switch Type, Pressure Setting...More

Pressure Switch,.05-12.0
  • ROBERTSHAW
  • Item # 6XJU5
  • Mfr. Model # 2374-502
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Pressure Sensing Switch,.05-12
  • ROBERTSHAW
  • Item # 6XJU2
  • Mfr. Model # 2374-499
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Pressure Switch,Differential, SPDT
Pressure Switch,Manual Reset
  • ROBERTSHAW
  • Item # 6XJU7
  • Mfr. Model # 2374-504
  • Pressure Sensing Switch, Manual Reset, Differential (In. WC) 0.06 to 0.8, Switch Type SPST NC, Pressure...More

Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM95
  • Mfr. Model # PAS-2100
  • Pneumatic Air Sensing Switch, Switch Action Adjustable Set Point, Pressure Setting Range WC 0.15 to 2.0...More

Airflow Switch,Auto Reset,SPDT
  • SIEMENS
  • Item # 2KGR4
  • Mfr. Model # 141-0574
  • Airflow Switch, Auto Reset, Differential 0.06 To 0.6 WC, SPDT Switch Type, Pressure Setting Range 0.05 To 1.0...More

Pressure Sensing Switch,.05-12
  • ROBERTSHAW
  • Item # 6XJU3
  • Mfr. Model # 2374-500
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Pressure Switch,.05-2.0
  • ROBERTSHAW
  • Item # 6XJU4
  • Mfr. Model # 2374-501
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Pressure Sensing Switch,SPDT
  • ROBERTSHAW
  • Item # 6XJV1
  • Mfr. Model # 2374-508
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) +/- 0.02, SPDT Switch Type, Pressure...More

Air Sensing Switch,Auto Reset,SPDT
  • POWERS CONTROLS
  • Item # 40PN35
  • Mfr. Model # 141-0518
  • Air Sensing Switch, Auto Reset, Differential (In. WC) 0.6 to 1.5, SPDT Switch Type, Pressure Setting Range...More

Air Sensing Switch,Manual Reset,SPST
  • POWERS CONTROLS
  • Item # 40PN37
  • Mfr. Model # 141-0575
  • Air Sensing Switch, Manual Reset, Differential (In. WC) 0.06 to 0.6, SPST Switch Type, Pressure Setting Range...More

Results per page:  16 | 32 | 48

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.

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More