Brand: Hunter Industries SKUs: I40-04-SS / I40-04-SS-R
Product Overview
The Hunter I-40-04-SS is a 4-inch pop-up commercial gear-drive rotor with a stainless-steel riser, adjustable 50- to 360-degree arc, standard drain check valve, and 1-inch female NPT inlet. This Big Frog Supply product includes a standard variant, SKU I40-04-SS, and a reclaimed-water identification variant, SKU I40-04-SS-R. Both variants use the adjustable-arc I-40 platform; the reclaimed version adds the factory identification intended for nonpotable irrigation systems.
The I-40 is designed for demanding large-turf applications such as parks, athletic fields, campuses, commercial landscapes, and municipal grounds. Hunter publishes a radius range of approximately 44 to 69 feet and a flow range of 7.6 to 29.5 GPM for the adjustable I-40 model, depending on the installed nozzle and operating pressure. Recommended and operating pressure is 40 to 100 PSI, with a standard 25-degree nozzle trajectory. The current Hunter specification builder identifies six supplied nozzle choices for the 4-inch stainless model.
Automatic arc return helps restore the programmed watering pattern if the turret is forced out of position. The non-strippable drive mechanism helps protect the internal gearing, and the combined part-circle and full-circle design allows one model to cover arcs from 50 degrees through a non-reversing 360-degree pattern. The factory-installed check valve is designed to hold back up to 15 feet of elevation to reduce low-head drainage after the zone shuts off.
Key Features
- 4-inch pop-up with stainless-steel riser
- Adjustable 50- to 360-degree arc
- Part-circle and full-circle operation in one model
- Automatic arc return
- Non-strippable, vandal-resistant drive mechanism
- Standard drain check valve for up to 15 feet of elevation
- 1-inch female NPT inlet
- Approximate 44- to 69-foot radius range
- Approximate 7.6- to 29.5-GPM flow range
- Standard and reclaimed-water ID variants available
Variant Options
- I40-04-SS: Standard 4-inch adjustable I-40 with stainless riser
- I40-04-SS-R: Same rotor configuration with reclaimed-water identification
Common Uses
- Athletic fields, parks, and large turf areas
- Commercial and municipal landscape irrigation
- High-traffic sites where a stainless riser is preferred
- Potable or reclaimed-water systems when the matching variant is selected
Compatibility and Installation Notes
- Select the variant that matches the site’s water-source identification requirements.
- Choose and install the nozzle according to required radius, flow, spacing, and available pressure.
- Use a compatible 1-inch swing joint or threaded connection.
- Install level with finished grade and provide clearance for the full 4-inch pop-up.
- Follow local requirements for reclaimed-water identification and system separation.
- Confirm the irrigation zone can supply the selected nozzle flow at the required pressure.
Frequently Asked Questions
Is this the opposing-nozzle I-40 model?
No. This product contains the adjustable-arc I-40-04-SS variants. The opposing-nozzle full-circle model is I-40-04-SS-ON.
What is the difference between the two variants?
I40-04-SS is the standard version. I40-04-SS-R adds reclaimed-water identification for appropriately designated nonpotable systems.
Can the standard I-40 operate full circle?
Yes. It adjusts from 50 degrees through a non-reversing 360-degree full-circle pattern.
Why Buy from Big Frog Supply?
Big Frog Supply carries Hunter I-40 rotors, replacement nozzles, swing joints, reclaimed-water components, valves, and commercial irrigation repair parts.
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