Hunter I-20-04-SS Ultra Rotor 4″ Pop-Up, Stainless Steel

Description

The Hunter I-20 series rotors are diverse and efficient for both residential and commercial projects.  These advanced gear-driven rotors come with factory installed features like FloStop® control and a check valve, making them the perfect choice in a wide range of applications.  Along with each rotor head you will receive a tree of 12 nozzles: 8 standard nozzles and 4 low angle nozzles.  We will also include a rotor adjustment tool with each order!

This I-20-04 with a stainless steel riser provides added value:

• Durability and Strength:
  • Stainless steel is a stronger material than plastic, making the rotors more resistant to damage and wear, especially in harsh environments or with heavy foot traffic.
• Vandalism Resistance:
  • The robust stainless steel riser helps deter vandalism in public areas like parks and sports fields, reducing the need for replacements and repairs.
• Coarser Soil Applications:
  • Stainless steel rotors are well-suited for areas with coarse soil, as the smooth surface prevents wear and damage to the riser seals.

Rotor Features:

• Stainless steel riser
• Non-strippable drive mechanism to protect from damage if turned in the opposite direction of travel
• FloStop® closes the flow of water from individual sprinklers to change the nozzle or perform repairs
• Drain check valve prevents low-head drainage (up to 10′ of elevation)
• Factory installed rubber cover
• Through-the-top arc adjustment
• Headed and slotted setscrew allows radius adjustment with a Hunter wrench or flat-blade screwdriver
• Part-circle and true 360° non-reversing full-circle adjustable
• Quick check arc mechanism
• Water lubricated gear-drive
• 12 nozzle choices included with each rotor:
  • 1.5 to 8.0 blue, 2.0 to 4.5 low-angle gray
  • Nozzle trajectory: Std = 25º, Low angle = 13º
  • Nozzles are supplied but are not pre-installed

Operating Specifications:

• Inlet size: 3/4″ FPT
• Exposed surface diameter: 1-3/4″
• Riser: 4″ (10 cm) pop-up
• Overall body length of 7-1/8″
• Radius: 17′ to 46′
• Adjustable arc: 50º to 360º
• Flow Rate: 0.36 to 14.8 GPM
• Recommended pressure range: 25 to 70 PSI
• Operating pressure range: 20 to 100 PSI
• Precipitation rates: 0.4 in/hr approx.

A pro-tip from the SprinklerNUT:  Manufacturer specifications for rotors assume certain minimum requirements of the irrigation system.  While it’s not impossible a that rotor could under-perform due to a manufacturing defect, it is very unlikely.  Under-performance is almost always an indication that the system it’s installed on does not meet the minimum performance requirements.  Things such as insufficient water pressure or volume, too many heads on a zone, or even the wrong nozzle for the application, can prevent a rotor from reaching performance capabilities.  You can use our contact page to reach out to us for help with any performance questions or concerns that you may have.

Looking for different nozzles?  On top of the 12 nozzles included with each rotor, the I-20 Ultra series features 22 additional nozzle options with several different radius choices (sold separately).  Browse our store to find the nozzle that is a perfect fit for your system!

If you need a taller stainless-steel riser, the I-20 Ultra is also made with a 6″ stainless riser.  The I-20 Ultra plastic riser models come in a 4″, 6″ and 12″ pop-up.  A shrub rotor is also available.