Hunter I-20 Full/ Part Circle 4" Stainless Steel Rotor Pop Up Sprinkler with Check Valve
(3,228 LPH & 14m Radius)
85 In Stock
The Hunter I-20 Rotor with stainless steel riser is an indispensable rotor capable of watering almost all garden areas! Invest in a long-lasting rotor sprinkler system and trust the corrosion and vandal-resistant riser for long-lasting durability.
For Outstanding Value without t... See Full Description
The Hunter I-20 Rotor with stainless steel riser is an indispensable rotor capable of watering almost all garden areas! Invest in a long-lasting rotor sprinkler system and trust the corrosion and vandal-resistant riser for long-lasting durability.
For Outstanding Value without the Cost, HydroSure has a Range of Rotor Sprinklerswith Time-Proven Reversing Mechanisms Built-in Promising a Long-Lasting Sprinkler System.
Stainless Steel Riser
Offering the best choice for corrosion resistance when installed in unforgiving soil conditions, heavy foot traffic or areas where vandalism is common, the stainless steel riser promises ultimate strength and minimal risk of failure.
Check Valve
Trust the built-in drain check valve to increase the longevity of your system.
Save water by keeping water in the system and prevent water from draining out when the system is switched off.
This I-20 Rotor prevents air pockets within the pipe network that would otherwise cause long-term damage to rotors.
Functions when installed up to 3.0m of elevation.
Automatic Arc Return
If the arc is forced out of alignment, the built-in automatic return features returns the turret to its original arc and starting position.
Non-Strippable Drive
The non-strippable, vandal-proof drive mechanism prevents gear stripping, protecting the sprinkler if turned in the opposite direction thus, saving on repair costs.
Dual-Functioning Part and Full Circle
Water almost anywhere in the garden! The I-20 Hunter Sprinkler provides both part and full-circle rotation all-in-one.
Flexible for all landscapes, the non-reversing 50 to 360-degree arc means this sprinkler is ideal for watering small or large gardens and both shrubs and lawns.
Headed & Slotted Set Screw
Easily and simply adjust or switch off the sprinkler at the head using either a Hunter Wrench or flat-blade screwdriver.
Adjust sprinkler spray patterns to fine-tune the coverage area.
Arrives complete with a built-in QuickCheck™ arc mechanism for fast arc adjustment.
Nozzle Racks
Arrives complete with a nozzle tree with interchangeable nozzles suitable for watering even the most complex landscapes.
Flat top nozzles allow quick and easy insertion.
Underground systems require frequent flushing to prevent dirt from clogging the nozzle or damaging the seal. Flush the system and clean the rotors if necessary to remove any sitting sediment.
Any damage to the riser caused by a mower or footfall will cause mechanical malfunction and disfigured spray patterns. Check each nozzle and turret top of your sprinklers to ensure they are intact.
The area around a sprinkler site may become boggy/waterlogged indicating a loose connection between the swing joint/fitting or a break in the pipe network. To repair a leak, use a Compression Joiner /Joiner depending on the pipe used or install PTFE Tape around any male threaded connection to ensure a watertight seal.
Water leaking from sprinkler sites even when the system is switched off indicates a problem called low head drainage. A pop-up sprinkler with a Check Valve will prevent water pooling from sprinklers installed at the lowest elevation.
My Sprinklers are
not Working the Same as when Purchased!
Over time a sprinkler may experience a build-up of sediment and debris that blocks the nozzle outputs or damages the riser retraction mechanisms inside the sprinkler. Flush the system and clean out the rotor sprinkler as explained in our Sprinkler Maintenance Guide.
Prevent debris build-up by installing an Irrigation Filter at the start of the system. • Alternatively, leaking connections or a pipe supplying the sprinkler may have split. The water lost from connections that are not watertight will cause pressure loss and reduce performance.
Why are my Underground
Pipe Connections Leaking?
An area that is boggy or waterlogged indicates a leaking connection or a pipe that may have split. Most connection points can be tightened by hand or by adding two wraps of PTFE Tape around male threads or replacing connectors that over time, have snapped.
When fixing your pipe network, depending on the pipe you are using to supply your system will indicate the type of connector you need to repair the damage.
My Sprinkler Does Not Cover the
Range/Radius Outlined in the Specifications
A variation in flow rate or pressure drop from the water source will also reduce the performance of sprinklers – Check the flow rate from your tap remains high enough during the time of day your system is set to run using our Calculating Flow Rate from the Water Source Guide.
On windy days, the spray pattern from your sprinklers may alter even when using nozzles with built-in wind resistance. Alternatively, running a system at a bar pressure that is too high, will create misting – Consider installing a Pressure Reducer regulated as specified in the sprinkler specifications to minimise spray pattern wind drift.
How do I Lift the Riser of a Pop-up Sprinkler?
To lift the riser of a rotor sprinkler, most require a Key inserted into the turret top of the sprinkler to lock into the mechanism and allow easy uprooting of the riser by hand. Any maintenance or switching of nozzles is often carried out in this way. Alternatively, ask a friend to switch the system on manually and catch the riser as it lifts during system operation.
