Rain Bird 212145 Diffuser Screw Kit for Eagle 950 Series Rotor - This Diffuser Screw Kit is for use with Rain Bird 950 Series Rotors. It includes a nozzle housing, 2 drilled and tapped diffuser screws, a notched cover, retract seal and 2 screw O-rings. Rain Bird rotors are engineered to deliver a low precipitation rate, so you can cover more area over a longer period of time.