Hunter I8004SS48S 4" Pop-up Stainless Steel I80 Rotor with Adjustable Arc & #48 Nozzle The I-80 gear-driven rotor is the most technologically advanced commercial rotor available. Engineered for sports turf and large park applications, the I-80 provides an ultra-robust, dirt-tolerant gear drive that offers the highest torque output of any rotor in the commercial arena. The I-80 features a wide range of highly efficient, dual trajectory, wind-fighting nozzles. Exclusive to the commercial rotor market, the I-80 provides total top serviceability (TTS) via its integrated, surface-mounted snap-ring. This no-dig solution makes maintenance quick and easy.