Nelson Irrigation Australia


The I-20 is loaded with upgraded features such as FloStop™ control, check valves, and efficient nozzles that make it the perfect choice in a range of applications.


  • Radius: 17' to 46'
  • Flow: 0.36 to 14.8 GPM
  • Flow: 1.2 to 53.8 l/min
  • Inlet Size: ¾" NPT


With 34 nozzle choices, a 4.9 to 14.0 m radius, and 6 body choices, the I-20 is an indispensable rotor. Whether youâve got a small area, sandy soil, or a mix of shrubs and grass, the I-20 is ready to water with efficiency and reliability. Recent improvements include automatic arc return (non-reversing 360, from 50 to 360 degrees) and a non-strippable, vandal-proof drive mechanism that prevents gear stripping and saves repair costs. Adding FloStop⢠control, easy, through-the-top arc adjustment, and a standard drain-check valve all equate to a rotor that stands second-to-none in its class.

Key Benefits

  • Patented automatic arc return feature returns the turret back to the original arc pattern if vandalised; adjustable arc from 50° to 360°
  • Non-strippable drive mechanism is protected from damage if turned in the opposite direction of travel
  • Part-and full-circle in one model is flexible for all landscapes and decreases inventory
  • Headed and slotted setscrew allows radius adjustment with a Hunter Wrench or flat-blade screwdriver
  • FloStop™ closes the flow of water from individual sprinklers for nozzle changes or repairs
  • Flat-top nozzles allow fast, easy insertion
  • QuickCheck™ Arc Mechanism for fast arc adjustment
  • Available stainless steel riser for extra durability
  • Drain Check Valve prevents low-head drainage (up to 3 m of elevation)