There’s nothing worse than sticky and scratchy valves. That’s why brass players at Victor Litz Music Center rely on Hetman #1 Light synthetic piston valve oil to keep their valves playing smoothly. This valve oil is specially formulated to lubricate piston valves with close tolerances and very close clearance. The oil lasts longer and provides consistent non-gumming lubrication; it also protects from wear and corrosion, saving you time and money at the repair shop. Hetman #1 Light synthetic piston valve oil is safe for use with Monel, stainless steel, and nickel-plated pistons.