With a ½” inlet, the K-Rain 13003 4" MiniPro Rotor with .5" Inlet is a gear-driven, rotary sprinkler that can replace all standard mini rotors and fixed zone pop-up sprays. In terms of specifications, the sprinkler can cover a radius of 18' to 33' (5,5 – 10,0 m) with a nozzle pressure of 20 to 70 PSI (1,4 to 4,8 bar) and a flow rate of .8 to 3.3 GPM (3,0 to 12,5 LPM). And the MiniPro has a stainless-steel radius adjustment screw and a nozzle trajectory of 25°.