The Hevan series nozzles combine water saving performance with the convenience and versatility of variable arc nozzles. Up to 40 percentage more efficient than other adjustable nozzles, Hevan nozzles can help you save water in any pop-up spray zone, correcting for uneven coverage and helping to reduce watering run times. They can replace the nozzles on most major brands of spray heads. The nozzles superior flow control technology delivers more uniform spray coverage across the pattern, even close to the head. Producing larger droplets that fall quickly and resist wind-blown overspray, Hevan nozzles also help you keep water on the grass, not on the sidewalk, driveway or buildings. With a simple twist of the nozzle collar you can adjust the spray pattern from 0 degree to 360 deg. Spray distance is adjusted by a top screw, allowing you to reduce nozzle throw up to 25 percentage.