Hunter G870: Quick, Clean and Easy to Service! 1. The Hunter G870 is the only golf rotor with every serviceable component accessible from the top - without excavation of the surrounding turf! 2. For the first time, access to the pilot valve, adjustable pressure regulator and solenoid is simple & easy. 3. The pop-up riser's large filter screen can be accessed by removing the heavy-duty snap ring with integrated wiper seal. 4. The slow closing inlet valve features total integration of the snap ring, valve seal, valve seat and rock screen. An industry first from Hunter Golf! 5. To complete the package, the G870 includes a heavy-duty body with integrated ACME threads molded right into the body.