MP Rotator nozzles rely on correct pressure at the head to perform properly.
The Hunter Pro-Spray PRS40 100 mm pop-up includes built-in pressure regulation set to 40 PSI (2.8 bar), which is the recommended operating pressure for MP Rotators.
By regulating pressure at each spray body, it helps reduce misting, uneven rotation, and inconsistent coverage across the zone.
What this is used for
The Hunter Pro-Spray PRS40 100 mm is a pressure regulated spray body designed specifically for spray zones running MP Rotator nozzles.
- Spray zones using Hunter MP Rotator nozzles
- Systems with higher or fluctuating inlet pressure
- Lawn and turf areas requiring even, consistent coverage
- New installations where pressure control is best handled at the head
What to check before you buy
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Pressure rating: PRS40 regulates outlet pressure to 40 PSI (2.8 bar).
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Pop-up height: 100 mm riser. Suitable for standard turf applications.
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Nozzle type: Designed for MP Rotators. Also suitable for fixed spray nozzles where higher regulated pressure is acceptable.
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Inlet thread: ½" female BSP bottom inlet.
Why PRS40 is recommended for MP Rotators
MP Rotators are designed to operate at 2.8 bar. Regulating pressure at the spray body ensures each nozzle performs consistently, even when system pressure varies across the zone.
Key features
- Built-in pressure regulation set to 40 PSI (2.8 bar)
- 100 mm pop-up height for standard turf installations
- Reduces misting and improves distribution uniformity
- Reliable wiper seal to limit leakage and debris entry
- Heavy-duty spring for consistent pop-up and retraction
Specifications
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Brand: Hunter
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Series: Pro-Spray PRS40
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Pop-up height: 100 mm
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Pressure regulation: 40 PSI (2.8 bar)
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Inlet: ½" female BSP
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Application: Pressure regulated spray irrigation systems
Compatibility and related parts
This pressure regulated spray body is commonly paired with MP Rotator nozzles to achieve stable, even watering across spray zones.
Need a hand choosing?
If you’re deciding between PRS30 and PRS40, or confirming the correct pop-up height for your site, let us know your nozzle type and water source and we’ll help you choose correctly.
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