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  Hunter SRM-04 4 in. Adjustable Arc Rotor
Hunter SRM-04 - 4 inch Adjustable Arc Rotor

Our Price: $11.98
Sale Price: $9.58
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Product Code: SRM-04

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Hunter SRM-04 4 inch adjustable arc rotary sprinkler  
Hunter SRM-04 4 inch adjustable arc rotary sprinkler

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Product Information


The low precipitation, low flow rotor for the replacement of spray head systems.

What if there was a sprinkler that offered all of the benefits of a rotor, but could be used in applications that called for a spray? Guess what, there is! The SRM offers a convenience and efficiency that sprays do not—it’s capable of working in tandem with larger rotors to combine big and small areas in a single zone. The end result is that fewer heads perform more efficient work for a more economical price. But, there’s more.

The SRM features a rack of six water-efficient nozzles, each of which can be easily identified by its flow rates and can be installed and changed quickly and easily. And, the rotor includes a radius adjustment feature that fine-tunes the spray to keep water off driveways, walks, and other non-landscaped surfaces. For fewer zones, less trenching, and less wasted water, choose the more economical alternative: SRM rotors.

Features & Benefits
  • Radius adjustment up to 25%: Allows fine tuning of spray, ensures positive nozzle retention
  • Part circle and full circle operation in one unit: Easily adjustable 40˚ to 360˚ from top of sprinkler, up, down, wet or dry
  • Quick check arc/fast forward: For quick verification of arc set points
  • Proven water lubricated gear drive: Matches superior reliability of time-tested Hunter gear drives
  • Heavy-duty pressure activated riser seal: Stops wasteful excess flow
  • Variable stator: Keeps rotation speed consistent regardless of nozzle size or pressure
  • Extra large filter screen: Traps more debris without clogging


  • Overall height: 6-5/8" (17 cm)
  • ½" female inlet NPT
  • Exposed diameter: 1-1/4" (3 cm)
  • Discharge rate: 0.5 to 3.0 GPM (0.11 to 0.68 m3/hr; 1.9 to 11.4 l/min)
  • Radius: 15' to 30' (4.6 to 9.1 m)
  • Pressure range: 30 to 50 PSI (2.1 to 3.4 bars; 206 to 344 kPa)
  • Precipitation rates: Approximately 0.45" per hour at 40 PSI (11 mm per hour at 2.8 bars; 275 kPa for spacings from 4.6 to 9.1 m)
  • SRM-04: 4" (10 cm) Pop-up

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Lawn Irrigation > Sprinkler Heads > Sprinkler Rotors > Hunter Rotors > Hunter SRM Rotors (15 - 30 ft)
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