• Hunter I-20 150mm pop up sprinkler - plastic riser

With 34 nozzle choices, a 4.9 to 14.0 m radius, and 6 body choices, the I-20 is an indispensable rotor. Whether you’ve 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.

• 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 to change the nozzle or perform repairs
• Flat-top nozzles allow fast, easy insertion
• Drain check valve prevents low-head drainage (up to 3 m of elevation)
• Hunter Key is required to make any adjustments to sprinkler (Product Code “HK”)

Tips
Arc Adjustments: Adjustable heads are preset to 180 degrees. Sprinklers may be adjusted with water on or off. It is recommended that initial adjustments be made before installation.

    Using the palm of your hand, rotate the nozzle turret counter clockwise to the left stop to complete any interrupted rotation cycle
    Rotate the nozzle turret clockwise to the right stop. This is the fixed side of the arc. The nozzle turret must be held in this position for arc adjustments. The right stop does not change

To increase the arc

1.     Insert the plastic key end of the Hunter wrench into the adjustment socket (hole with + - symbols)
2.     While holding the nozzle turret at the right stop, turn the wrench clockwise. Each full 360 ̊ turn of the wrench will increase the arc 90 ̊.
3.     Adjust to any arc between 40 ̊ and 360 ̊
4.     The wrench will stop turning, or there will be a ratcheting noise, when the maximum arc of 360 ̊ (full circle) has been reached

To decrease the arc

1.     Insert the plastic key end of the Hunter wrench into the adjustment socket (hole with + - symbols)
2.     While holding the nozzle turret at the right stop, turn the wrench counter-clockwise. Each full 360 ̊ turn of the wrench will decrease the arc 90 ̊.
3.     Adjust to any arc between 40 ̊ and 360 ̊
4.     The wrench will stop turning, or there will be a ratcheting noise, when the minimum arc of 40 ̊ has been reached

Refer YouTube installation videos