Overview Reviews Similar Products Product Description No Fault Heater Barb, 3/4" for Double Barrel, Kit HQR6B10 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view No Fault Heater Gaskets, Double Barrel, Kit $18.42 $11.95 Add to Cart Quick view Turn-Around Manifold Kit, for Watkins Double Barrel Heaters $80.00 $48.95 Add to Cart Quick view HotSpring / Tiger River No Fault 4000/4KW Spa Heater 73791 $538.00 $422.13 Add to Cart