Say Goodbye to Heating Issues -- Caldera spa parts fixes common problems that prevent your spa from heating properly. Perfect Compatibility -- 73995 hot tub pressure switch compatible with Watkins, Solana, Caldera Spa, Hotspot (2006-current). Easy to Install -- Hot Tub Relay Switch requires no tools and is easy to install; Check out some YouTube videos before installing. High Quality -- Pool heater pressure switch is made of highly durable opaque plastic materials that are well-crafted, durable, and tested in multiple processes before leaving the factory to ensure their quality meets standards. PLEASE NOTE -- Before installation, wrap three turns of Teflon tape around the pressure switch threads (opposite direction of threads). Do not use pliers when screwing the new pressure switch into the heater; grasp the body of the pressure switch and tighten by hand only. After installation is complete, turn the jet pump to high speed and check the pressure switch for leaks. If you have any suggestions or questions about the Watkins 73995 Hot Tub Relay Switch, please let us know by e-mail and we will get back to you within 24 hours. 73995 Spa Heater Pressure Switch for Watkins, Solana, Caldera Vacanza, Hotspot, Electronic 2-Wire 3-Pin Connector with 1/8” MPT Standard Threads for 2006 Thru Current Hot Spot Hot Tub Hot Tub Spa Heater Pressure Switch for Watkins 73995 Solana Caldera Hot Spring&Spot 2010+ Relay/Rhythm/Tempo&2011+ SX TX,2006-2009 Solana RX SX TX,2010+ Caldera Palatino/Marino 73995 Hot Tub Pressure Switch for Most Watkins Caldera, Hot Spot, Solona Hot Tub Models from 2006, with 24 cm 2-Wire 3-Pin Connector Cable 73995 Pressure Switch Replacement for Watkins Solana Caldera,Hot Tub Spa Heater Pressure Switch Fit for Hot Spring & Spot 2010+ Relay/Rhythm/Tempo & 2011+ SX TX,2006-2009 Solana RX SX TX,2010+ Caldera