The in-line pressure switch is for use with submersible or in-line self venting pumps in a pressurised water system.
It controls the pump by turning it on and off by sensing changes in the water system pressure.
Whale has been developing and refining innovative water supply products for caravans and motorhomes since the 1960s. Today, we use over 50 years experience to provide reliable products that are simple to fit, and even more simple to use.