The GRAV® Hammer Bubbler is 4" tall and made on 32mm tubing. Its fission downstem diffuses smoke through water, and its feet stabilize the bubbler between uses. No accessories are necessary for using this bubbler, and it functions best with approximately 0.5" of water.

Carb: On the Left
Designed by: Dave Daily
Filtration type: Cross-cut Downstem
Length height: 7"