0888833 (Watts) | 2-1/2 - 4 Inch | 994/994RPDA Second Check Repair KitThis Check Assembly Kit Includes The Parts Necessary to Repair or Replace The Second Check of a 2 1 2 to 4 Inch Reduced Pressure Zone Assembly, Series 994 or Reduced Pressure Detector Assembly, Series 994RPDA. This Kit Consists of All Parts Necessary to Repair The Second Check Assembly of The Applicable Valve. All Parts Are Genuine And Original to The Valve. Watts 0888833