Zurn RK34-975XLC Wilkins Complete Repair Kit for Models 975XL/975XL2, 0.75" to 1" Sizes and for 3/4" to 1" Backflow Preventer Fits 3/4 Inch to 1 Inch Zurn 975XL and 975XL2 Includes complete poppets, springs and seats Complete Repair Kit, Internal Includes No. 1 and No. 2 check seal ring, No. 1 and No. 2 check spring, relief valve rubber components, relief valve spring, O-rings, poppets and lubricant Genuine Zurn Parts