The Tecmark 3158-EH pressure switch is a reliable SPST (single pole, single throw) replacement component designed for spa and hot tub chemical feeding systems. This OEM-quality switch operates at 2 PSI activation pressure with a 3-amp rating and features standard 1/8" NPT threading for seamless integration into most spa plumbing configurations.
Built to Tecmark's exacting standards, this pressure switch ensures consistent chemical system operation when water flow conditions are met. At Bubbles Supply, we guarantee this is the exact fit for your system and back every purchase with our 1-year warranty plus same-day shipping on in-stock orders. Professional installation is recommended to ensure proper pressure calibration and system safety—always verify your existing switch specifications and plumbing connections before replacement.