Hetman A14MW30 Classic Piston Valve Oil Lubricant #3 - 2 oz.
$7.99$9.99
This oil is specifically designed for rotary valves, not piston valves. Rotary valves are tighter with less space between the rotor and the casing (outer housing), therefore, rotary oil tends to be thinner than valve oil. Holton rotary valve oil comes in a 1.25 ounce bottle.