Relief Valve internal Module for 3/4" - 1" Wilkins 975 SKU: RK34-975XLVT $115.00 Login for better price Select Quantity -+ Add to Cart Additional DetailsResourcesManufacturer: Wilkins Size: 3/4 Inch, 1 Inch Product model: 975XL / 975XL2 / 975XLU / 975XL2U Specification Sheet Repair Parts Guide Air Gap Specification Sheet