"RAIN BIRD" FIXED PATTERN NOZZLE *0" pop up height *Quarter spray pattern *8' spray radius *Nozzle distributes water evenly regardless of pattern *Stainless steel adjustment screw *Filter screen included *Use up to 20% less water than spray heads *Simple to retro-fit *Can be zoned with rotors to allow matched precipitation rate *For use with 1800, SP40, SP25 and A17 series spray heads