A bong bowl with a built-in glass screen that improves airflow, ensures even burning, and prevents clogging.

Grav Labs developed and manufactured the exclusive octobowl for use in bongs. One opening at the bottom of traditional bowls causes resin to build up and ash to fall through. At the base of the octobowl is a built-in glass screen with eight small holes for airflow. This ensures an even burn, prevents product loss, and reduces clogging.

Octobowls from Grav Labs come in a variety of sizes to fit a wide range of pieces. The smoke will better pass through the piece if you pack a bowl like you would and attach the octobowl to the appropriate downstem.

An octobowl is more difficult to clean than a traditional bowl piece due to the numerous small openings. One can be thoroughly cleaned by soaking it for at least an hour in an isopropyl alcohol and rock salt mixture. After that, rinse with warm water to get rid of any remaining debris.