

The world's best gear-driven rotary sprinkler for residential and light commercial irrigation just keeps getting better. Hunter began setting the standards for professional gear-driven rotors two decades ago and continues to set the bar higher with each new enhancement to such proven reliable performers as the I-20 Ultra, our heavy duty, commercial grade workhorse for residential and light commercial irrigation.
The rotor's signature feature is the revolutionary FloStop® control which allows you to stop the flow of water through an individual head while the remainder of the zone is operating. The I-20 also offers one of the widest selections of nozzle choices in a rotary sprinkler. In addition to a full rack of 8 standard and 4 low angle nozzles, Hunter also offers 10 specialty nozzles. These include 6 short distance (smaller radius) nozzles and 4 high flow nozzles. All of these nozzles offer fast, simple installation and provide superior close-in coverage.
As if performance wasn't enough, the I-20 Ultra also boasts exceptional safety features, highlighted by an integral rubber cover that stays put to keep play areas safe. The rotor's small exposed surface area, combined with the softness of the rubber cover, makes it the preferred rotor choice for play areas. But, by no means is this a “soft” rotor. Areas subject to heavy foot traffic or equipment will meet their match in the extremely tough body cap with ribbed reinforcement. And, for additional toughness and durability, there's Hunter's optional stainless steel riser sleeve.
In addition, for those who prefer to maintain a higher cut of turf on their landscapes, the I-20 Ultra offers a 6-inch version. You'll get better clearance over the lawn while receiving the same degree of top-notch performance (as well as Hunter's unsurpassed 5-year warranty) found in all other models of the I-20. It's a level of performance that has earned the rotor its well-deserved reputation for quality. If you are looking to upgrade over a typical residential grade rotor, this is where the search ends. No other rotor in its class gives you more.
DIMENSIONS
- Overall height: 9 7/8" (25 cm)
- 3/4" female inlet NPT
- Exposed diameter: 13/4" (4 cm)
OPERATING SPECIFICATIONS
- Discharge rate: 0.36 to 14.8 gpm
- (0,08 to 3,7 m3/hr; 1,4 to 56,0 l/min)
- Radius: 17' to 47' (5,2 to 14,3 m)
- Pressure range: 30 to 70 psi (2,1 to 4,8 bars; 206 to 482 kPa)
- Precipitation rates: approximately 0.4" (10 mm) per hour at
- 50 psi (3,4 bars; 344 kPa) for spacings from 17' to 47'
- (5,2 to 14,3 m)
- Nozzle trajectory: standard – 25°/low-angle – 13°
Blog posts
-
Why Snow Melt Mats are a Must-Have
Snow Ice Melting Mats is undoubtedly a wise investment. With minimal running costs, maximum safety measures, and remarkable durability, they offer an all-in-one package for an effortless winter experience.Read now -
Get Frost-Proof!
Upgrading to a frost-free faucet alleviates the worry of winter-induced water damage and adds extra protection to your home’s water supply. It’s an investment that pays for itself in peace of mind and financial savings.Read now -
How To Prevent Damage? Guide to Winterizing Your Sprinkler System!
Insulating above-ground fixtures, such as valves and backflow preventers, is recommended during winterization. Insulation helps protect these components from freezing temperatures, reducing the risk of damage.Read now