The 4" Socket White PVC Single Entry Ball Valve with Buna-N O-rings is a robust quarter-turn shut-off valve designed for heavy-duty applications in industrial, chemical, turf, irrigation, pool, and spa settings. Featuring a full Schedule 80 bore, this valve ensures minimal pressure drop and optimal flow when fully open. Its heavy-duty PVC body offers exceptional chemical and corrosion resistance, never rusting, scaling, or pitting over time. With strong buttress thread union nuts, it provides secure connections, while Buna-N O-rings ensure reliable sealing. Pressure rated to 150 PSI at 73 degrees Fahrenheit and NSF certified for potable water use, this valve is also suitable for vacuum service and is assembled with silicone-free, water-soluble lubricants for ease of operation.