32SA SAM – 19-32 ft. Simple Adjust Closed-Case ½" Inlet Gear Drive Rotor Sprinkler with SAM Check Valve
KLIFT-IT KJKE, Rotor Sprinkler Ext. Black 2 inch Coupler/ Internal Riser/ Check Valve, Works w/ Rain Bird 5000/5004, DIY 5Pk 1005621055 - The Home Depot