Penn Plax Aqua Mist 7/16 Canister Airstone; available in different pack sizes.

AQUA-MIST 7/16in CANISTER AIRSTONE.  

The air stone diffuses air, creating water movement. The air stone also increases surface agitation, accelerates oxygen replenishment and helps release carbon dioxide build-up.

Simply connect the air stone to your air pump with airline tubing & check valve and place it in the desired location. 

Available in the following pack sizes:

• 1 pack
• 2 pack
• 4 pack