Rain Bird RISERCO6 PVC Cut-Off Riser, 1/2" Male Pipe Thread x 1/2" Male Pipe Thread, Adjustable Height 1" to 6". Versatile 1/2â€ diameter cut-off riser is perfect for underground or above-ground connections of sprinklers to water supply pipes. Allows positioning sprinkler heads at heights needed to clear obstacles or taller plantings. It can be easily cut to length with a hacksaw or pipe cutoff tool. Multiple cutoff steps provide clean starting threads at: 1â€, 2â€, 3â€, 4.5â€, 5â€ or 6â€ height. Fits all 1/2â€ inlet sized impact sprinklers, pop-up sprays, and rotor sprinklers. 6â€ long with 1/2" Male Pipe Thread (MPT) x 1/2" Male Pipe Thread (MPT) ends. Constructed of black PVC. Rain Bird â€œThe Intelligent Use of Waterâ€.