Evans 22" black Hydraulic two-ply bass head features a thin film of oil between the plies that suppresses unwanted overtones. A classic sound, short in sustain. Tension it tight for a real thump or loose for a more slappy sound.

Evans Hydraulic series features two plies of thin film offering maximum durability, a fat, deep and short sound pioneered by early 70's rock and roll. Hydraulics are famously easy to tune, making them a perfect fix for troublesome drums and players with little tuning experience. Available in 3 colors: glass, black and blue.

• 22" drum head with a thin layer of oil between two plies of black film to suppress unwanted overtones
• Two plies offer consistency and durability for longer playing time
• A fat, deep and short sound pioneered by early 70's rock and roll
• Also available in clear (also called glass) and blue versions
• The only oil-filled drum head on the market