Hetman Piston Trumpet Valve Oil #2

Hetman® Synthetic Piston Lubricants provide superior wear and corrosion protection for all types of piston valves. Whether your instrument has Monel, stainless steel, or nickel-plated pistons, these long-lasting, non-gumming lubricants will provide for an action that is smooth, quick and consistent
 
2. PISTON - Designed for instruments with piston valves having average clearance.