Featuring differential of 11.5-58 psi, MAMCO Precision Switches' normally closed water pressure switches are used as original equipment on water well pumps. The switches are available with operating pressure ranges of 14.5-87 psi or 29-159.5 psi.

Used in a number of applications including sump and sewage, pool and spa, car wash, residential/domestic water system, plumbing, agricultural, and commercial/industrial water system, Schneider Electric's Square D water pressure switches are UL listed and CSA certified control equipment. The switches are available with a fixed or non-adjustable pressure differential.

H20 Co Inc. distributes 1/8" NPT threaded, compression, and 1/4" MIP threaded water pressure switches manufactured by Barksdale and Len Gordon. The 1/8" NPT threaded switches feature up to 5 psi and are used in electric and gas heaters.