RK4-350ASTCK1

Large Diameter Backflow Preventer Repair Kit

First Check Assembly Repair Kit for 2-1/2", 3" and 4" 350AST/350ASTDA

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  • First Check Assembly Repair Kit
  • Fits 2-1/2", 3" and 4" Models 350AST/350ASTDA
  • Includes #1 check assembly, retainer and lubricant