REMCO's Valve Housing Repair Kit makes repairing your REMCO Sprayer Pump easy. This Valve kit is compatible with REMCOs 3300 Series Pumps only and should be installed if you pump runs but will not prime or pick up liquid. The Polypropylene housing and Viton valves ensure chemical compatibility and durability. When installing be sure to include all parts to ensure your pump functions properly.Package Contents: 1 - Valve housing with 3 pressed Inlet Valves, 1 - circle exhaust valve, 1 - half circle exhaust valve