1. Material: High quality stanless steel co2 diffuser, corrosion resistant, durable and long using lifetime.
2. Rechangeable ceramic stone: One piece mold craftsmanship, eliminates the traditional apron sealing structure and improved sealing effect.
Better refinement and fine bubbles save co2 for your aquarium planted tank
3. Quick plug connector built in check valve, anti water return, suction cup free gift
4. Double U design, from 25cm, 30cm, 35cm, 40cm difference size optional, could meet difference size tank.
5. Customized packaging box, and laser engraved logo provide for wholesale customer