Vacuum Switches

This item is a 1/8" MPT Plastic Plug which can be used to block an 1/8" MPT (male Pipe Thread) hole normally found on a Heater Tube on Hot Tubs. This hole size is the same size as a Pressure Switch hole and would measure about 3/8" wide across the hole...

This part is a Vacuum Switch like you will find on some  Cal Spas in the suction side of the pump. Specs V4001P-DX Replacement, 21A, 1/8"mpt. For a switch like the original click this link: PresAirTrol Style Vacuum Switch This is a normally open...

This item is a 1/8" MPT Brass Plug which can be used to block an 1/8" MPT (male Pipe Thread) hole normally found on a Heater Tube on Hot Tubs. This hole size is the same size as a Pressure Switch hole and would measure about 3/8" wide across the hole or...

This part is a Vacuum Switch that can be found on the Safety Suction Systems on some Cal Spa brand tubs and others.. For a less expensive switch that will work in place of this one click this link: Generic Replacement Vacuum Switch This switch is a...

This item is a 1/8" MPT Plug which can be used to block an 1/8" MPT (male Pipe Thread) hole normally found on a Heater Tube on Hot Tubs. This hole size is the same size as a Pressure Switch hole and would measure about 3/8" wide across the hole or the...