Backflow Preventer Repair Kit, For Use With Watts Series LF909 (2-1/2 in to 3 in), Includes Check Disc, Check Stem O-Ring, Cover O-Ring, Diaphragm, Lubricant, Piston O-Ring, Piston Seal, RV Disc Assembly, Sleeve O-Ring, Compliance NSF Lead Free. This item has been restricted from sale in the following state (s): []