Wilkins RK14-975XL | Complete Repair Kit for 975XL Backflow PreventersThe Wilkins RK14 975XL is a complete rubber and springs repair kit designed for 1 4" 1 2" Model 975XL and 975XL2, and 3 8" 1 2" 975XLST Reduced Pressure Principle Backflow Preventers , allowing you to speed up repairs while lowering maintenance costs and extending product life . Key Specifications: Size Compatibility: 1 4 Inches to 1 2 Inches Temperature Range: 33 Degrees to 180 Degrees F Compatible Models: 975XL, 975XL2, 975XLST Series Notable