TECMARK PRESSURE SWITCH

TEC4037P

Pressure Switch Tecmark 4037P Adjustable For Spa Heaters. 1/8 Inch NPT Thread, 22 Amp Rated. Tecmark Series 4000. Replaces 3037P, 4010P, Barksdale, Len Gordon, Herga, And Older Tri-Delta Pressure Switches.