This hot tub compatible with Watkins Spas water check valve works with 1-1/2" inner diameter to 2" outer diameter pipes. It prevents back flow .
Hot Tub Replacement Part Compatible With Watkins Spas Water Check Valve, 1-1/2" I.D./2" O.D. HTCP71980 . This "Jet System" check valve is used on all Hot Spring models from 1989 to now and all Tiger River spas. This check valve engages when the diverter valve is changed to different positions. For convenience, the inside diameter of this check valve is 1-1/2" and the outside diameter is 2".
- This is for a Single Watkins Water Check Valve, 1-1/2" I.D./2" O.D.
