Pentair 263064 Push-Pull Valve 7.5" / 7.81"The Pentair OEM 263064 Push Pull Valve is a genuine Pentair control valve designed for use on compatible Pentair pool filter systems with 7. 5 and 7. 81 square foot configurations. This push pull style valve controls water flow direction during normal filtration and backwashing operations, allowing the filter system to function properly and be cleaned efficiently. Push pull valves are commonly used on vertical grid D. E. and specialty filter systems