Multi-Tork Socket Set Tool [3 Socket Set] (MT-301) MT301 Includes 3 lightweight sockets. Just match the Multi-Tork socket to your equipment’s clamping system, attach to a portable drill or driver, and see the clamps removed instantly. This value pack offers three tools in one convenient pack.MTJ-770 for use on: Systems equipped with 2-1/4" or 3" knobs. Sta-Rite System 3 models 75 and 110 MT-100 (Now Aluminum) for use on: 7/8" hex nuts 9/16" hex nuts Purex Triton Nautilus Pentair American Products Hayward Pro Grid and Micro-Clear series. MT-50: Poly-carbonate socket that works with Sta-Rite pumps, Posi-Flow filters, Mytilus, Pentair, R.G. Ray, Pac-Fab, Qwik-Clean, Paramount, Cal-Pump, Wet Institute, Caretaker, and Pool Valet. Tool Type Group Install/Removal Tool Type Socket Set, 3 Items Tool Application Various Manufacturer Multi-Tork