Model: W 7-1/2 Capacity: ERW Pipe 4" OD - 12 3/4" OD, Wall Thickness: .135" - .375" , Pinch Roll/ Feed Stand, Entry Guide Unit, 4 Break-Down Passes, 3 Horizontal Forming Stands (single), Dual Head Horizontal Forming Stand, 3 Fin Passes with Slide-In Units for 4-Roll Forming, 750 KVA Electric Resistance Welder: 2 Roll Weld Pressure Units with Driven Rolls, ID & OD Scarfing Units, Weld Coolant System, 3 Sizing Stands with Slide-In Units for 4 - Roll Forming, Complete Roll Sets for 6-5/8": 10-3/4" and 12 3/4" OD.