Rainbird 8HFLT 8' MPR Half Circle Flat Spray Pattern Nozzle (180 Degree) Matched precipitation rates across sets and across patterns in 5 Series, 8 Series, 10 Series, 12 Series, and 15 Series 27 Series nozzles meet small-area shrub or turf requirements. 30 Series nozzles have a lower water flow which allows more spray heads per zone. 1822 Series white filter (.035" x .035") screens (shipped with nozzles) maintain precise radius adjustment and prevent clogging. Stainless steel adjustment screw to adjust flow and radius.