Hunter I-25 Gear-Driven 4" Pop-Up Rotor Sprinkler — 40–71 ft Radius, Built-In Check Valve

The Hunter I-25 is a compact, gear-driven 4" pop-up rotor that delivers commercial-grade watering across a 40' to 71' radius with built-in check valve and durable construction.

Designed for landscapes that need reliable, long-distance coverage without a large footprint, the I-25 blends durability, efficiency and serviceability. Its gear-driven mechanism provides smooth rotation and consistent precipitation, while options such as stainless steel risers, reclaimed-water ID and a high-speed model let you tailor performance to demanding sites. Backed by a five-year warranty, this rotor suits turf, parks, commercial beds and larger residential properties where dependable watering and low maintenance matter.

How much area can the I-25 cover and how adjustable is the spray?

The I-25 is built for broad coverage: standard nozzles cover a radius from roughly 40 to 71 feet depending on pressure and nozzle choice. Patterns are adjustable and the unit accepts a wide range of high-performance nozzles so you can dial in arc and distance for irregular beds or turf strips.

• Radius: approximately 40'–71' with factory and high-performance nozzles
• Arc adjustment: full-circle and part-circle options for tailored coverage
• Nozzle selection: multiple high-efficiency nozzles available for different precipitation rates
• Pressure: performance varies with site pressure—choose nozzle to match your system

What makes the I-25 durable enough for commercial and tough residential jobs?

The I-25 uses a gear-driven drivetrain inside a compact housing that resists wear and delivers steady rotation. For sites with high traffic or corrosive conditions, an optional stainless steel riser adds mechanical strength. The standard integrated check valve reduces low-head drainage and the overall assembly is built for long service life.

• Gear-driven mechanism for consistent, low-wear operation
• Optional stainless steel riser for extra toughness and corrosion resistance
• Built-in check valve to prevent unwanted drainage and pooling
• 5-year warranty for added long-term confidence

How is the I-25 maintained and serviced on site?

Maintenance is straightforward: the rotor’s compact top and serviceable internals allow easy access for nozzle changes, arc adjustments and routine checks. Hydraulics are designed for reliable operation, and replacement nozzles and service parts are widely available to keep systems running with minimal downtime.

• Top-access design for quick nozzle swaps and arc adjustments
• Common replacement parts available through Hunter and distributors
• Service-friendly for winterizing, flushing and on-site troubleshooting
• Optional high-speed model for sites requiring faster rotations

Who is this product for? The Hunter I-25 4" rotor is aimed at landscape professionals, facility managers and homeowners with large turf or mixed planting areas who need reliable long-radius coverage in a compact pop-up body. It fits installations where space is limited but performance and durability can’t be compromised—think commercial grounds, municipal parks, sports fields and high-end residential properties that demand low-maintenance, customizable irrigation solutions.