Tecmark 3902 Universal Pressure Switch W/O Brass Fittings (3902) tecmarkcorp Installed in the proper spa-light

Installed in the proper spa-light setup

better alignment

The 2 inch size

A silicone tube helps support sealing and maintenance work where a flexible silicone material is needed in a smaller hand-applied format

This version is especially useful when the original timer has failed and the installation depends on 115 volt panel-mount service with a weekly scheduling format

Tecmark 3902 Universal Pressure Switch W/O Brass Fittings (3902) tecmarkcorp Installed in the proper spa-lightThe Tecmark 3902 universal pressure switch is designed for compatible applications where a flexible replacement pressure switch is needed and brass fittings are not included. Universal switches are useful because they can simplify service when the system requires a broadly compatible pressure sensing solution. This replacement is especially useful when the original switch is unreliable, no longer sensing pressure correctly, or has failed and a