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Front three-quarter view of K-Rain RPS75 4-inch pop-up rotor showing riser, rotor head, and rubber cover for irrigation system installation.

K-Rain RPS75 4-inch Adjustable Arc Rotor, 3/4-inch Inlet

Brand: K-Rain
Save 44%
$22.81
$12.83
SKU RPS75
In Stock (39)

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Designed for residential and light-commercial irrigation, the K-Rain RPS75 is a gear-drive, 4" pop-up rotor with a 3/4" NPT inlet. Its patented reversing mechanism provides continuous reverse-and-return operation while a non-flushing wiper seal and durable rubber cover keep dirt and debris out for long-term reliability.

  • Direct PGP® replacement: Universal riser assembly fits into existing Hunter® PGP and PGP Ultra cans for fast field upgrades and retrofits.
  • Wide arc adjustment: Simple top-adjustment offers 40°–360° full and part-circle flexibility for precise zone coverage.
  • Nozzle versatility: Includes a wide selection of standard and low-angle nozzles (performance tables available in product literature) to match precipitation rates and radius needs.
  • Performance range: Operates effectively across typical turf pressures (30–70 PSI) and supports low-flow layouts for efficient water use.
  • Riser & trajectory: 4" riser height with standard nozzle trajectory for consistent, even distribution across recommended spacing.
  • Durable design: Gear-drive reliability, rubber cover, and a non-flushing wiper seal reduce maintenance and extend service life.

Backed by K-Rain performance data and a limited warranty, the RPS75 is built for dependable, economical irrigation. See the product brochure and setting instructions for nozzle selection charts, performance tables, and installation guidance.

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Frequently Asked Questions

Will the RPS75 riser fit my Hunter PGP can?
Yes. The RPS75 universal riser assembly is designed to fit existing Hunter PGP and PGP Ultra cans for a straightforward replacement.
What arc range and adjustments are available?
Top-adjustment allows simple setting from 40° up to 360° for full or part-circle coverage; adjustments use familiar right-start positioning.
Which pressures and flows does the RPS75 support?
The rotor performs across typical turf pressures (30–70 PSI) with nozzle-specific flows from about 0.75 to 8.2 GPM depending on nozzle and pressure.
How do I choose nozzles and find performance data?
Use the K-Rain RPS75 product brochure and performance tables to match nozzle size and pressure to desired radius and precipitation rate.

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