Hunter PGP-04 Ultra Rotor: Advanced Irrigation Technology for Superior Coverage

Since 1981, Hunter Industries has led irrigation innovation, and the PGP-04 Ultra Rotor represents their latest advancement. Building on the trusted PGP lineup, this rotor introduces enhanced features while maintaining the reliability professionals expect.

What Makes It "Ultra"?

Extended Rotation Range: The rotor adjusts from 50° to 360°, delivering more even water distribution across the entire coverage area.

Non-Strippable Drive with Auto-Arc Return: This mechanism prevents damage from forced rotation and automatically returns to the preset arc—durability and convenience at a competitive price.

Improved Dirty Water Tolerance: Enhanced internal gear drive resistance to debris-laden water reduces maintenance downtime and extends service life.

Package Contents

Each unit includes a square top rack with 8 standard nozzles and 4 low-angle nozzles—providing flexibility for varied landscape needs without additional purchases.

New Adjustment Options

Users can adjust the rotor using either a slotted screwdriver or the Hunter wrench included with original PGP models.

Key Specifications

• Overall Height: 7-3/8" (19 cm)
• Inlet: 3/4" female NPT
• Discharge Rate: 0.9–14.8 GPM
• Radius: 17'–47' (5.2–14.2 m)
• Recommended Pressure: 30–70 PSI (2.1–4.8 bars)
• Operating Pressure: 20–100 PSI (1.4–6.9 bars)
• Precipitation Rate at 50 PSI: ~0.4"/hr (10 mm/hr)
• Nozzle Trajectory: 25° (standard), 15° (low-angle)

Available options include reclaimed water identification covers and factory-installed nozzles for streamlined installation.