A full 4-inch pop-up clears tall turfgrass for even coverage. Stainless-steel riser resists damage and vandalism. Special design eliminates blow-by and reduces pressure loss to improve system performance. Dual-direction flushing protects internals from debris and ensures positive pop-up/down. Radius can be adjusted up to 25 percent for best coverage. Quick lock design allows internals to be serviced from the rotor’s top. Range: 53′-74′.