Pressure Switch

Pressure Switches control when pumps turn on and off based on system pressure levels. These essential components protect your equipment and maintain consistent water pressure in wells, tanks, and pump systems. Choose from our wide selection of pressure ranges, connection sizes, and heavy-duty options perfect for any job.

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Showing 673–720 of 2331 resultsSorted by popularity

-1.66″WC Normally Closed Pressure Switch

Lochinvar & A.O. Smith

SKU: 100224394
$44.38
MSRP: $51.04
You save 15%
Lochinvar & A.O. Smith 100224394 -1.66"WC N.C. Pressure Switch quantity
2.3″ Blocked Inlet Pressure Switch, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100217965
$68.34
MSRP: $78.59
You save 15%
Lochinvar & A.O. Smith 100217965 2.3" Blocked Inlet Pressure Switch quantity
Blocked Flue Switch for Water Heaters & Boilers

Lochinvar & A.O. Smith

SKU: 100208407
$140.35
MSRP: $161.40
You save 15%
Lochinvar & A.O. Smith 100208407 Blocked Flue Switch quantity
Low Air Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208406
$118.68
MSRP: $136.48
You save 15%
Lochinvar & A.O. Smith 100208406 Low Air Switch quantity
Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208404
$119.71
MSRP: $137.67
You save 15%
Lochinvar & A.O. Smith 100208404 Pressure Switch quantity
Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208400
$152.74
MSRP: $175.65
You save 15%
Lochinvar & A.O. Smith 100208400 Pressure Switch quantity
Low Air Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208399
$152.33
MSRP: $175.18
You save 15%
Lochinvar & A.O. Smith 100208399 Low Air Pressure Switch quantity
OEM Pressure Switch, Replacement Part #100208398

Lochinvar & A.O. Smith

SKU: 100208398
$152.33
MSRP: $175.18
You save 15%
Lochinvar & A.O. Smith 100208398 Pressure Switch quantity
Gas Pressure Switch for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100208395
$67.20
MSRP: $77.28
You save 15%
Lochinvar & A.O. Smith 100208395 Gas Pressure Switch quantity
Air Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208393
$152.33
MSRP: $175.18
You save 15%
Lochinvar & A.O. Smith 100208393 Air Pressure Switch quantity
1/20″ w.c. Open Low Pressure Switch, Manual Reset, 1/4″ NPT

Lochinvar & A.O. Smith

SKU: 100208392
$329.21
MSRP: $378.59
You save 15%
Lochinvar & A.O. Smith 100208392 1/20"wc Open Low Pressure Switch M/R 1/4" NPT quantity
Air Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208391
$140.35
MSRP: $161.40
You save 15%
Lochinvar & A.O. Smith 100208391 Air Pressure Switch quantity
OEM Replacement Pressure Switch, SKU 100208390

Lochinvar & A.O. Smith

SKU: 100208390
$152.85
MSRP: $175.78
You save 15%
Lochinvar & A.O. Smith 100208390 Pressure Switch quantity
Low Gas Pressure Switch for Natural Gas Applications

Lochinvar & A.O. Smith

SKU: 100208389
$62.91
MSRP: $72.35
You save 15%
Lochinvar & A.O. Smith 100208389 Low Gas Pressure Switch NAT quantity
1″ WC Pressure Switch – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208388
$223.95
MSRP: $257.54
You save 15%
Lochinvar & A.O. Smith 100208388 1"WC Pressure Switch quantity
1.15″wc SPST Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208387
$59.54
MSRP: $68.47
You save 15%
Lochinvar & A.O. Smith 100208387 1.15"wc SPST Pressure Switch quantity
2.25″wc Pressure Switch Kit, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100208386
$70.56
MSRP: $81.14
You save 15%
Lochinvar & A.O. Smith 100208386 2.25"wc Pressure Switch Kit quantity
Pressure Switch 3″ WC Replacement Part

Lochinvar & A.O. Smith

SKU: 100208385
$68.33
MSRP: $78.58
You save 15%
Lochinvar & A.O. Smith 100208385 Pressure Switch 3"WC quantity
0.85″ WC Pressure Switch for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100208384
$44.80
MSRP: $51.52
You save 15%
Lochinvar & A.O. Smith 100208384 0.85"WC Pressure Switch quantity
5.30″wc SPST Pressure Switch | SKU 100208383

Lochinvar & A.O. Smith

SKU: 100208383
$52.80
MSRP: $60.72
You save 15%
Lochinvar & A.O. Smith 100208383 5.30"wc SPST Pressure Switch quantity
6.20″wc SPST Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208382
$52.64
MSRP: $60.54
You save 15%
Lochinvar & A.O. Smith 100208382 6.20"wc SPST Pressure Switch quantity
Pressure Switch Kit, 3.0″ WC, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100208381
$50.40
MSRP: $57.96
You save 15%
Lochinvar & A.O. Smith 100208381 Pressure Switch Kit 3.0" WC quantity
OEM Replacement Pressure Switch, SKU 100208380

Lochinvar & A.O. Smith

SKU: 100208380
$52.64
MSRP: $60.54
You save 15%
Lochinvar & A.O. Smith 100208380 Pressure Switch quantity
0.09″ WC Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208379
$57.13
MSRP: $65.70
You save 15%
Lochinvar & A.O. Smith 100208379 0.09"WC Pressure Switch quantity
4.10″WC Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208378
$43.68
MSRP: $50.23
You save 15%
Lochinvar & A.O. Smith 100208378 4.10"WC Pressure Switch quantity
Pressure Switch Kit, OEM Replacement, SKU 100208377

Lochinvar & A.O. Smith

SKU: 100208377
$43.81
MSRP: $50.38
You save 15%
Lochinvar & A.O. Smith 100208377 Pressure Switch Kit quantity
.12″wc Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208376
$52.64
MSRP: $60.54
You save 15%
Lochinvar & A.O. Smith 100208376 .12"wc Pressure Switch quantity
Dual Pressure Switch, Hi 1.06″ w.c. / Lo 0.75″ w.c.

Lochinvar & A.O. Smith

SKU: 100208375
$174.41
MSRP: $200.57
You save 15%
Lochinvar & A.O. Smith 100208375 Dual Pressure Switch Hi 1.06 Lo .75"wc quantity
1.0″ Blower Prover Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100187858
$70.11
MSRP: $80.63
You save 15%
Lochinvar & A.O. Smith 100187858 1.0" Blower Prover Switch quantity
1.35″wc SPDT Pressure Switch, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100166258
$44.80
MSRP: $51.52
You save 15%
Lochinvar & A.O. Smith 100166258 1.35"wc SPDT Pressure Switch quantity
SPDT Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100166256
$56.00
MSRP: $64.40
You save 15%
Lochinvar & A.O. Smith 100166256 SPDT Pressure Switch quantity
1.05″wc SPDT Pressure Switch, SKU 100166249

Lochinvar & A.O. Smith

SKU: 100166249
$163.53
MSRP: $188.06
You save 15%
Lochinvar & A.O. Smith 100166249 1.05"wc SPDT Pressure Switch quantity
.95″wc SPDT Pressure Switch, SKU 100166248

Lochinvar & A.O. Smith

SKU: 100166248
$168.00
MSRP: $193.20
You save 15%
Lochinvar & A.O. Smith 100166248 .95"wc SPDT Pressure Switch quantity
Pressure Switch Kit – OEM Replacement, SKU 100166246

Lochinvar & A.O. Smith

SKU: 100166246
$154.80
MSRP: $178.02
You save 15%
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1.06″wc SPDT Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100166244
$119.84
MSRP: $137.82
You save 15%
Lochinvar & A.O. Smith 100166244 1.06"wc SPDT Pressure Switch quantity
.27″wc SPDT Pressure Switch, SKU 100166242

Lochinvar & A.O. Smith

SKU: 100166242
$160.16
MSRP: $184.18
You save 15%
Lochinvar & A.O. Smith 100166242 .27"wc SPDT Pressure Switch quantity
.21″wc SPDT Pressure Switch, SKU 100166241

Lochinvar & A.O. Smith

SKU: 100166241
$107.33
MSRP: $123.43
You save 15%
Lochinvar & A.O. Smith 100166241 .21"wc SPDT Pressure Switch quantity
0.95″ w.c. SPDT Pressure Switch, SKU 100166235

Lochinvar & A.O. Smith

SKU: 100166235
$50.40
MSRP: $57.96
You save 15%
Lochinvar & A.O. Smith 100166235 0.95" w.c. SPDT Pressure Switch quantity
1.15″wc SPDT Pressure Switch, SKU 100166234

Lochinvar & A.O. Smith

SKU: 100166234
$36.96
MSRP: $42.50
You save 15%
Lochinvar & A.O. Smith 100166234 1.15"wc SPDT Pressure Switch quantity
1.05″wc SPDT Pressure Switch, Replacement Part

Lochinvar & A.O. Smith

SKU: 100166232
$50.40
MSRP: $57.96
You save 15%
Lochinvar & A.O. Smith 100166232 1.05"wc SPDT Pressure Switch quantity
1.35″wc SPDT Pressure Switch, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100166230
$50.40
MSRP: $57.96
You save 15%
Lochinvar & A.O. Smith 100166230 1.35"wc SPDT Pressure Switch quantity
1.25″wc SPDT Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100166229
$47.04
MSRP: $54.10
You save 15%
Lochinvar & A.O. Smith 100166229 1.25"wc SPDT Pressure Switch quantity
OEM Pressure Switch, Replacement Part #100166222

Lochinvar & A.O. Smith

SKU: 100166222
$150.68
MSRP: $173.28
You save 15%
Lochinvar & A.O. Smith 100166222 Pressure Switch quantity
.10″wc SPST Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100166220
$163.06
MSRP: $187.52
You save 15%
Lochinvar & A.O. Smith 100166220 .10"wc SPST Pressure Switch quantity
-1.42″WC Normally Closed Air Pressure Switch

Lochinvar & A.O. Smith

SKU: 100158115
$47.93
MSRP: $55.12
You save 15%
Lochinvar & A.O. Smith 100158115 -1.42"WC N.C. Air Pressure Switch quantity
.85″wc Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100112850
$39.00
MSRP: $44.85
You save 15%
Lochinvar & A.O. Smith 100112850 .85"wc Pressure Switch quantity
Air Pressure Switch – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100112849
$47.04
MSRP: $54.10
You save 15%
Lochinvar & A.O. Smith 100112849 Air Pressure Switch quantity
Blower Prover Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100112757
$37.54
MSRP: $43.17
You save 15%
Lochinvar & A.O. Smith 100112757 Blower Prover Switch quantity

Pressure Switch

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