Heater does not contain connection for a pressure switch. Utilize Watkins jumper (72768) to bypassOR, order this retrofit kit meant for those that have a built in pressure switch:Retrofit Kit for No Fault Pressure Switch Heater
Replaces Part Numbers: 73790, 10311, 46-555-1012, NSCV73790, 26-C3160-15, 26-C3160-2S, SET-00-0H-00, THD02Replaces old Watkins Heater 6kw No Fault 6000 IHH-6000-NHCW, Also Part #'s WAT73790 6759 46-555-1012 9330-51 9330-50 72797
Therm Products Premium Titanium-element replacement assembly for old Watkins low flow dual tube Hot Tub Heater with NEW installed sensors. (Never re-use old sensors in a new heater). Features streamlined, double-pass design and PDR auto reset.
Product notes: Fits many 1995 to current Hot Spring® , Tiger River®, and Limelight spas by Watkins. Replaces obsolete trumpet-style Laing Infinity 7211. Includes a Bleed Tube Extension Kit with coupling & clamps for ease of installation on some spa models. UL listed. 1 year factory warranty