Check Valve for 360/500 Bilge 3/4" (19mm) ports — Replacement check valves for the "new" Rule‑Mate Bilge pumps. Helps prevent backflow of water into the bilge. Check Valve High Flow Easy Installation Easy Maintenance Smooth flow Long Life. Features include high flow performance, smooth flow design, easy installation and maintenance, plastic exterior finish and barbed port included. Outlet connection size: 0.75 inches. Number of ports: 2. Item dimensions (L x W x H): 1 x 1 x 1 inches. Package dimensions: 5.16 x 2.52 x 1.22 inches. Package weight (converted): 0.35 ounces. Manufacturer part number: 1221R.
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