About this pressure switch
The Tecmark TBS-3000 pressure switch is a high-capacity SPST (single pole, single throw) control switch designed for spa and hot tub chemical feed systems. This 21-amp rated switch activates at 2 PSI with 1/8″ NPT threading, making it compatible with most standard spa chemical dosing equipment and circulation systems that require precise pressure-based activation.
Built to Tecmark’s OEM specifications, this pressure switch delivers reliable performance in demanding spa environments. With our exact fit guarantee, you get the precise replacement your system needs, backed by our 1-year warranty and same-day shipping on in-stock orders. The 1/8″ NPT connection ensures secure installation in your existing plumbing setup—verify thread size and pressure requirements match your current switch before installation.
