Rain Bird Falcon 6504 Part-Circle Rotor 4 in. Riser with SAM Check Valve

Built for large turf coverage with dependable water distribution, the Rain Bird Falcon 6504 Part-Circle Rotor 4 in. Riser with SAM Check Valve helps deliver consistent irrigation while reducing low-head drainage, puddling, and erosion. Its Rain Curtain nozzle technology supports long-range, mid-range, and close-in watering, helping maintain healthier turf across parks, athletic fields, schools, cemeteries, and commercial landscapes. This part-circle rotor features easy top arc adjustment from 40° to 360°, allowing precise coverage without complicated setup. The 4 in. pop-up height helps clear taller turfgrass, while the SAM check device holds up to 10 ft. of head to prevent unwanted drainage at low points. A water-lubricated gear drive, stainless steel trip gears, heavy-duty retract spring, tapered riser stem, and patented pressure-activated wiper seal work together to protect internal components from debris and support reliable pop-up and retraction. With interchangeable color-coded Rain Curtain nozzles, front-access servicing, and up to 25% radius reduction through the nozzle retention screw, the Falcon 6504 gives installers flexible performance for demanding irrigation layouts. Its small 2 in. exposed surface diameter also helps reduce trip or impact risk in active play areas while maintaining a clean, durable field appearance.