The Tecmark 4036P is a heavy-duty 25-amp SPDT pressure switch designed for hot tubs and spas requiring reliable water flow detection. This 4000 Series switch operates at 1-5 PSI with a 3/16" barb connection, making it compatible with most spa circulation and heating systems where precise pressure monitoring is critical for safe operation.
Built to OEM specifications, this genuine Tecmark pressure switch delivers the exact fit you need to restore proper spa function. We guarantee fitment accuracy and back every switch with our comprehensive 1-year warranty, plus same-day shipping to get your spa running quickly. The SPDT configuration provides versatile wiring options for various spa control applications. Ensure proper barb size compatibility and secure all connections during installation to prevent air leaks that could affect switch performance.