Profile: M-Line Seals & Gaskets is a manufacturer and distributor of hydraulic, pneumatic, rotary shaft & mechanical seals. Our brands include MERKEL SEALS™, HALLITE™ and SEPCO™. Our products include seal valves, control valves, pressure valves, pumps, piston valves, motors, bearings, shafts, gasket adhesives, fiberglass ropes, heat exchangers, O-rings, hydraulic cylinders, pneumatic cylinders and wipers. We also offer the repair and replacement of hydraulic and pneumatic equipment and components.