Matched flow rate nozzles assures uniform coverage. 4 In. pop-up clearance and overall length of 6 In. Adjustable distance of throw for spacing of 6 Ft. to 15 Ft. Stem cleaner keeps grit out and heavy-duty stainless steel spring for positive pop-down. Easy to remove filter screen that is just beneath the nozzle. Reliable at low-pressure operation. Durable high-impact poly construction. 1/2 In. Female connection at bottom. Disassembles without tools.