Pentair's® 2" PVC Backwash Push-Pull Slide Valve (formerly 261165) is Pentair's® most popular valve. Slide Valve 2" Backwash Valve offers superior backwashing capabilities without compromising structural integrity. As with all backwash slide control valves, the Pentair® D.E. slide valve feature an easy-to-use push/pull lever action handle that lets you control the filter from normal operation to the backwash operations with ease. The slide valves are constructed with some of the strongest plastics available for durability, strength and longevity of the valve under the most demanding conditions. Features: PVC body The right valve for easy operation Six position, positive lock operation Special winterizing position One year Warranty Works with Pentair FNS Plus and Pentair Quad DE Filters