Toro 53711 570Z Pro Series 4" 90 Degree Pop-Up Sprinkler with Nozzle and 15' ThrowToro's 570Z Pro Series Fixed-Spray Sprinklers are tougher by design. Ideal for small (5' to 15' (1.5 m to 4.6 m)) lawn and shrub areas, the 570Z's patented zero-flush seal prevents water loss at start up. This means you can install more sprinklers per zone.Toro 53711 570Z Pro Series 4" 90 Degree Pop-Up Sprinkler with Nozzle and 15' Throw Features: Patented Zero Flush Seal prevents water waste on start up Superior retraction spring and seal ensures proper retraction and prevents water waste Pre-installed nozzle is easily replaced with any Toro nozzle Heavy-duty stainless steel retraction spring improves pop-down and resists corrosion Matched precipitation rate (MPR) ensures even water distribution - any pattern, any radius Ratcheting riser for fine-tuning arc alignment after installation Threads directly to standard 1/2" risers 15' Spray Radius, Quarter Circle PatternToro 53711 570Z Pro Series 4" 90 Degree Pop-Up Sprinkler with Nozzle and 15' Throw Specifications: Inlet: 1/2" (1.3 cm) NPT Flow: 0.85 gpm (3.2 LPM) at 30 PSI Maximum Operating Pressure: 75 PSI (5.2 BAR) Nozzle Trajectory: 27 degrees Optimal Operating Pressure: 30 PSI (2.1 BAR) Recommended Operating Pressure: 20 - 50 PSI (1.4 - 3.4 BAR)