Hunter PGP Ultra Adjustable Rotor 4 in. Riser

Built on over 30 years of innovation, the Hunter PGP Ultra Adjustable Rotor 4 in. Riser delivers unmatched durability and precision for professional irrigation systems. Designed with patented features that prevent damage, ensure accurate arc return, and provide ultimate flexibility, this rotor sets the benchmark for reliability in residential and commercial landscapes. With an adjustable arc from 50° to 360°, a rugged non-strippable drive mechanism, and both part- and full-circle operation in one model, the PGP Ultra adapts seamlessly to a variety of watering needs. The QuickCheck arc mechanism makes adjustments fast and straightforward, while flat-top nozzles allow easy installation and service. Paired with a wide selection of nozzles for diverse precipitation rates, this rotor ensures even coverage and water efficiency, season after season. Engineered for consistent performance under operating pressures from 20 to 100 PSI, the PGP Ultra is built to withstand vandalism, changing site conditions, and daily wear—making it a trusted choice for those who demand the highest standards in irrigation technology.