Brand: K-Rain SKU: RPS75Product OverviewThe K-Rain RPS75 is a 4-inch residential and light-commercial gear-driven rotor with a 3/4-inch female NPT inlet and adjustable coverage from 40° to 360°. It is designed for medium-size turf and landscape zones that need dependable rotation, interchangeable nozzle options, and enough range to replace many standard residential rotors.Current K-Rain performance data lists an approximate 22- to 51-foot radius, 0.7- to 8.3-GPM flow range, and 20- to 70-PSI operating range. The included nozzle selection contains eight standard and four low-angle nozzles, allowing the installer to balance radius, flow, trajectory, and precipitation for the site. A fixed right start and top arc adjustment simplify setup, while the non-flushing wiper seal helps reduce water loss during startup.The universal riser assembly is designed to fit existing Hunter PGP and PGP Ultra cans, which can make compatible retrofit work easier without replacing the buried outer body. That fit does not remove the need to verify the installed can, nozzle requirements, pressure, and condition before replacement. A rubber cover protects the adjustment area, and optional check-valve configurations are available for sites affected by low-head drainage.Key Features 4-inch gear-driven rotor Adjustable arc from 40° to 360° Approximate 22- to 51-foot radius Approximate 0.7- to 8.3-GPM flow range 20- to 70-PSI operating range 3/4-inch female NPT inlet Eight standard and four low-angle nozzles Universal riser fits compatible Hunter PGP and PGP Ultra cans Current manufacturer warranty listed as seven years Common Uses Residential lawns and larger landscape zones Light-commercial turf irrigation Replacing a compatible 3/4-inch rotor Retrofitting a compatible Hunter PGP or PGP Ultra can Compatibility and Installation NotesSize the nozzle from the available dynamic pressure and flow, not the desired radius alone. Use matched precipitation and head-to-head spacing throughout the zone. When reusing an existing rotor can, inspect the body, seal area, and threads before installing the RPS75 riser. Flush the line and complete arc and radius adjustments using current K-Rain instructions.Frequently Asked QuestionsWill the RPS75 fit every Hunter rotor body?No. K-Rain specifically identifies compatibility with existing Hunter PGP and PGP Ultra cans; verify the installed model and condition first.Are nozzles included?K-Rain lists eight standard and four low-angle nozzles with the standard rotor configuration.Can it operate as a full-circle rotor?Yes. The arc can be adjusted from 40° through 360°.Why Buy the K-Rain RPS75 from Big Frog Supply?The RPS75 combines broad nozzle selection with a retrofit-friendly riser for common residential rotor applications. Big Frog Supply also carries reclaimed-water, intelligent-flow, ProPlus, and sports-field K-Rain rotors, helping customers select the correct version instead of treating every 3/4-inch rotor as interchangeable.
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