Turbo Rotary Spray Nozzle Nozzle Size 3.9 Max Pressure 4 000 psi Max Fluid Temp 194 Degrees F Inlet 1/4 in (F)NPT Material Brass/Ceramic/Plastic Orifice Size 3.9 mm Nozzle Spray Angle 40 Degrees GPM @ 800 PSI 1.8 gpm GPM @ 1000 PSI 1.9 gpm GPM @ 1500 PSI 2.4 gpm GPM @ 2000 PSI 2.7 gpm GPM @ 2500 PSI 3 gpm GPM @ 3000 PSI 3.3 gpm GPM @ 3500 PSI 3.6 gpm GPM @ 4000 PSI 3.9 gpm