HUNTER S ORIGINAL ROTOR: The PGP-ADJ delivers proven performance and precision, trusted by professionals and homeowners for its durability and long-term reliability. Retracted body height: 7 " (19 cm); exposed diameter: 1 " (4.5 cm). Sold as a convenient 2-pack. ADJUSTABLE ARC & SPRAY DISTANCE: Features a pre-installed 3.0 GPM nozzle with an arc range adjustable from 40 to 360 , ideal for full- or part-circle applications. Spray distance: 22 to 52 feet. GEAR-DRIVEN PERFORMANCE FOR QUIET, SMOOTH ROTATION: Equipped with a water-lubricated gear drive, this 4-inch pop-up sprinkler delivers even, efficient coverage while minimizing wear for long-term use. COMPATIBLE WITH STANDARD -INCH INLETS: The -inch female NPT inlet ensures compatibility with most standard irrigation systems, allowing for seamless replacement of existing rotors with the same connection size. ADJUSTMENT TOOL INCLUDED: Includes a Hunter adjustment wrench for quick arc and radius settings. Fast-forward feature allows easy verification of arc stopping points.