Hunter I-20 Ultra 100mm Adjustable Gear Drive Sprinklers with Nozzle Rack (20mm BSP) 

The Hunter I-20 Ultra is a professional-grade gear-drive rotor built to deliver maximum performance, reliability, and versatility across residential, commercial, and municipal landscapes. With a radius range of 4.9–14m and 34 nozzle options, the I-20 can be tailored to meet the demands of the most complex irrigation designs — from small turf areas to large open fields.

Engineered with advanced features such as automatic arc return, a non-strippable vandal-proof drive mechanism, and non-reversing 360° coverage, the I-20 ensures consistent, worry-free operation even in high-traffic or demanding environments. Through-the-top arc adjustment and Hunter’s QuickCheck™ mechanism simplify setup, while the FloStop® control allows you to shut off individual heads during maintenance without affecting the entire system.

A standard drain-check valve prevents low-head drainage on slopes, conserving water and protecting landscapes from erosion. For even greater efficiency, optional pressure-regulated bodies reduce incoming pressures (3.4–6.9 bar) down to 3.1 bar, saving up to 25% more water.

The I-20 Ultra combines heavy-duty construction with user-friendly adjustability, making it one of the most dependable, flexible, and water-efficient rotors in the Hunter range.

FEATURES

• Radius: 4.9–14m for medium to large turf areas
• Adjustable arc 50°–360° with automatic arc return
• Non-strippable, vandal-proof drive prevents gear damage
• FloStop® control shuts off individual heads during maintenance
• QuickCheck™ mechanism for fast diagnostic checks
• Factory-installed rubber cover for added durability and safety
• Standard drain-check valve eliminates low-head drainage
• Water-lubricated gear drive for long service life
• 34 interchangeable nozzles for design flexibility
• Warranty: 5 years

SPECIFICATIONS

• Model: I-20-04 Ultra (100mm pop-up)
• Overall Height: 19cm
• Pop-Up Height: 10cm
• Exposed Diameter: 4.5cm
• Inlet Size: 20mm BSP (¾")
• Radius: 4.9–14m
• Flow Range: 1.2–53.8 L/min (0.07–3.23 m³/hr)
• Recommended Pressure: 1.7–4.5 bar (170–450 kPa)
• Operating Pressure: 1.4–7 bar (140–700 kPa)
• Precipitation Rate: ~10 mm/hr
• Nozzle Trajectories: Standard 25°, Low Angle 13°