

K-Rain RPS 75 Rotor 4 in. | RPS75
Product Overview
Irrigation failures during the height of the summer heat lead to rapid turf stress, costly replanting, and frustrated clients who expect a lush landscape. When a standard rotor fails to reverse or sticks in place, the resulting dry spots can ruin a contractor's reputation and lead to emergency service calls during your busiest season. Supply chain fluctuations often make high demand components difficult to source at the last minute; securing your inventory now prevents project delays and failed site inspections. Planning ahead with reliable gear ensures your crews stay on schedule and your projects remain profitable through the peak demand of the late spring and summer months.
The K-Rain RPS 75 is engineered as a direct, high performance replacement for the industry standard Hunter PGP rotor, offering the technician a familiar footprint with enhanced internal durability. It features a patented reversing mechanism that reduces wear on the internal gears, extending the service life of the head compared to lower grade residential alternatives. This compatibility means your crews can swap units without digging up entire zones or altering pipe configurations. By stocking a rotor that simplifies maintenance and reduces callbacks, you maintain a competitive edge in labor efficiency and long term system reliability.
Product Specifications
| Specification | Detail |
|---|---|
| Material | High Impact Heavy Duty ABS Plastic |
| Pop-Up Height | 4 Inches |
| Inlet Size | 3/4 Inch Female NPT Thread |
| Operating Pressure | 30 to 70 PSI |
| Flow Rate | 0.5 to 8.2 GPM |
| Adjustment Range | 40 to 360 Degrees Arc |
| Color/Finish | Black Body with Color Coded Nozzles |
| Pre-Installed Nozzle | #2.5 Standard Nozzle |
Available Models & Sizes
The RPS 75 is available in this standard 4 inch pop-up configuration and is compatible with a full range of interchangeable nozzles to meet specific flow and radius requirements. Please contact our sales team for bulk pallet pricing or to inquire about specialized high flow nozzle kits for larger commercial layouts.
Key Features
- Patented reversing mechanism ensures consistent performance and reduces internal gear fatigue.
- Direct replacement compatibility for the Hunter PGP allows for seamless retrofitting in existing zones.
- Universal adjustment tool simplifies arc setting from the top of the head even while the system is running.
- Thick rubber cover protects the internal assembly from debris and helps prevent damage from maintenance equipment.
- Wide selection of interchangeable nozzles provides flexibility for various radius and precipitation needs.
- Heavy duty stainless steel retraction spring ensures the head drops below grade after every cycle.
Common Applications
- Commercial landscape irrigation
- Residential lawn and garden systems
- Sports turf and golf course maintenance
- Municipal parks and public spaces
- Greenhouse and nursery operations
- Erosion control and stormwater systems
Installation Notes
Installation requires a standard 3/4 inch threaded riser or swing pipe assembly. When setting the arc, use a flat head screwdriver or the K-Rain adjustment tool to turn the center adjustment slot until the desired spray pattern is achieved. Ensure all debris is flushed from the lateral lines before installing the nozzle to prevent clogging the internal filter screen. Always follow local plumbing codes regarding backflow prevention and pressure regulation to ensure optimal rotor performance and site compliance.
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