McMaster 53015K61 316 Stainless Steel Cam and Groove Hose Coupling Straight Plug, 3 4 Coupling Size x for 3 4" Hose ID 483J29 Service Clamp Block and Manuals Service Clamp Block and Manuals Duty Heavy Duty Grinder Orientation In Line Tool Weight 1 lb Handle Material Composite Bearing Type Ball Bearing Switch Type Safety Lever Speed Ranges 35000 rpm Power Source Air Powered Kit Contents (1) Bare Tool Air Consumption 6 cfm Exhaust Location Rear Tool Style Straight Switch Location Bottom Features Low Profile Level Throttle Reduces Operator Fatigue Mesh Size 2 in x 2 3 8 in Diesel Fuel these couplings have better durability than plastic cam and groove couplings