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Water Air Pressure Switches

Install a SupplyApp duct pressure switch to aid your HVAC system's performance. Positive, negative, or differential air pressure is sensed by an air switch, which activates an internal switch. Auxiliary devices such as electronic air cleaners, duct warmers, humidifiers, exhaust fans, and duct booster fans are started and stopped automatically via duct pressure switches. SupplyApp has a large selection of duct pressure switches.

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Pressure Switch DPST 50/70 psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 50/70 psi 1/4 FNPS
9013FSG52J33M4
$40.11
Pressure Swtch 105/135 psi 1/4 FNPS DPST
SQUARE D
Pressure Swtch 105/135 psi 1/4 FNPS DPST
9013FHG32J39M1
$81.39
Pressure Switch 575Vac 1Hp F +Options
SQUARE D
Pressure Switch 575Vac 1Hp F +Options
9013FSG2J18
$37.42
Pressure Switch DPST 80/100psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 80/100psi 1/4 FNPS
9013FHG2J27M1
$45.90
Pressure Switch Standard DPST 80/100 psi
SQUARE D
Pressure Switch Standard DPST 80/100 psi
9013FHG24J27M1X
$93.10
Pressure Switch DPST 95/125psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 95/125psi 1/4 FNPS
9013FHG12J52M1
$47.70
Pressure Switch DPST 145/175psi Standard
SQUARE D
Pressure Switch DPST 145/175psi Standard
9013GHG6J63X
$187.16
Pressure Switch Diaphrgm 3/8 FNPS Stndrd
SQUARE D
Pressure Switch Diaphrgm 3/8 FNPS Stndrd
9013GHG6J63
$137.52
Pressure Switch DPST 40/20 psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 40/20 psi 1/4 FNPS
9013FRG62J23
$62.86
Pressure Switch 40/60 psi Diaphragm DPST
DAYTON
Pressure Switch 40/60 psi Diaphragm DPST
12T089
$39.11
Pressure Switch DPST 30/50 psi Standard
DAYTON
Pressure Switch DPST 30/50 psi Standard
12T088
$37.76
Pressure Switch DPST 20/40 psi Diaphragm
DAYTON
Pressure Switch DPST 20/40 psi Diaphragm
12T087
$39.92
Pressure Switch DPST 40/60 psi Standard
DAYTON
Pressure Switch DPST 40/60 psi Standard
12T086
$22.48
Pressure Swtch DPST 10 to 100 psi Stndrd
DAYTON
Pressure Swtch DPST 10 to 100 psi Stndrd
12T085
$42.43
Pressure Switch Standard 20/40 psi DPST
DAYTON
Pressure Switch Standard 20/40 psi DPST
12T084
$38.66
Pressure Switch 10 to 100 psi 1/4 FNPT
DAYTON
Pressure Switch 10 to 100 psi 1/4 FNPT
12T083
$31.54
Pressure Switch DPST 30/50 psi Diaphragm
DAYTON
Pressure Switch DPST 30/50 psi Diaphragm
12T082
$33.71
Pressure Switch DPST 20/40 psi Standard
DAYTON
Pressure Switch DPST 20/40 psi Standard
12T081
$33.42
Pressure Switch Stndard 5 to 65 psi DPST
GAST
Pressure Switch Stndard 5 to 65 psi DPST
AK620E
$417.47
Pressure Switch DPST 50/70 psi Diaphragm
SQUARE D
Pressure Switch DPST 50/70 psi Diaphragm
9013GSG2J33P
$104.13
Pressure Switch DPST 50/70 psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 50/70 psi 1/4 FNPS
9013GSG2J33
$139.93
Pressure Switch Diaphragm 1/4 FNPS DPST
SQUARE D
Pressure Switch Diaphragm 1/4 FNPS DPST
9013GSG2J25P
$104.13
Pressure Switch Stndard 5 to 80 psi DPST
SQUARE D
Pressure Switch Stndard 5 to 80 psi DPST
9013GSG2J25E
$226.24
Pressure Switch DPST 40/60 psi Diaphragm
SQUARE D
Pressure Switch DPST 40/60 psi Diaphragm
9013GSG2J24P
$137.64
Pressure Swtch Stndrd 40/60 psi 1/4 FNPS
SQUARE D
Pressure Swtch Stndrd 40/60 psi 1/4 FNPS
9013GSG2J24E
$190.39
Pressure Switch Diaphragm 20/40 psi DPST
SQUARE D
Pressure Switch Diaphragm 20/40 psi DPST
9013GSG2J23R
$155.63
Pressure Swtch Revers 20/40 psi 1/4 FNPS
SQUARE D
Pressure Swtch Revers 20/40 psi 1/4 FNPS
9013GSG2J23PR
$121.94
Pressur Swtch 15 to 30 psi Diaphrgm DPST
SQUARE D
Pressur Swtch 15 to 30 psi Diaphrgm DPST
9013GSG2J21E
$225.81
Pressure Switch DPST 50/70 psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 50/70 psi 1/4 FNPS
9013FYG2J33P
$46.39
Pressure Swtch DPST 5 to 80 psi 1/4 FNPS
SQUARE D
Pressure Swtch DPST 5 to 80 psi 1/4 FNPS
9013FYG2J33M4
$80.52
Pressure Swtch Diaphrgm 5 to 80 psi DPST
SQUARE D
Pressure Swtch Diaphrgm 5 to 80 psi DPST
9013FYG2J33M1
$51.60
Pressure Switch Stndard 5 to 80 psi DPST
SQUARE D
Pressure Switch Stndard 5 to 80 psi DPST
9013FYG2J33
$58.72
Pressure Swtch 5 to 80 psi Standard DPST
SQUARE D
Pressure Swtch 5 to 80 psi Standard DPST
9013FYG2J25P
$44.86
Pressure Swtch 5 to 80 psi DPST 1/4 FNPS
SQUARE D
Pressure Swtch 5 to 80 psi DPST 1/4 FNPS
9013FYG2J25M4
$73.57
Pressure Swtch Diaphrgm 5 to 80 psi DPST
SQUARE D
Pressure Swtch Diaphrgm 5 to 80 psi DPST
9013FYG2J25M1
$75.01
Pressure Swtch Stndrd 40/60 psi 1/4 FNPS
SQUARE D
Pressure Swtch Stndrd 40/60 psi 1/4 FNPS
9013FYG2J24P
$66.35
Pressure Switch DPST 40/60 psi 1/4 FNPS
SQUARE D
Pressure Switch DPST 40/60 psi 1/4 FNPS
9013FYG2J24M4
$73.28
Pressure Swtch Diaphrgm 5 to 80 psi DPST
SQUARE D
Pressure Swtch Diaphrgm 5 to 80 psi DPST
9013FYG2J24M1
$50.25
Pressure Switch Stndard 5 to 80 psi DPST
SQUARE D
Pressure Switch Stndard 5 to 80 psi DPST
9013FYG2J24
$54.18
Pressure Switch Diaphragm 1/4 FNPS DPST
SQUARE D
Pressure Switch Diaphragm 1/4 FNPS DPST
9013FYG2J21M4
$73.57

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