Hunter I-25 Plus Rotors Hunter I-25 Plus Rotors (Rotary Sprinklers) feature a ribbed body and cap for better grip, an extra-thick heavy-duty rubber cover, the industry’s smallest exposed surface area in its category, a dozen nozzles that provide optimum performance in both primary and secondary coverage, the patented VStat® self-adjusting stator, compact, extra-beefy construction, and an optional stainless steel riser for even more toughness. For durability, performance and economy on medium to large area sites, no other rotor brings it all together like the Hunter I-25 Plus. No wonder it is the pick of so many people for so many jobs.