7" Round Aluminum Oxide Airstones Fitting:1/2" Barb (for Poly pipe) Pellets are spread over the

Pellets are spread over the surface of the water evenly but can be focused on problem areas

200 sheets per pack

We make these medium bubble diffusers with garden hose fittings (a cap on the male end and a 1/4” male barb adapter on the female fitting)

Tanks are blue in colour

Please see Specs/ Sizing tab for sizes and lengths

7" Round Aluminum Oxide Airstones Fitting:1/2" Barb (for Poly pipe) Pellets are spread over theDescription Unlike the standard silica airstones, these can be cleaned time and time again without wearing down. These airstones are made of aluminum oxide, the same material used for grinding stones which makes them extremely durable. With increased durability, there has been nothing sacrificed in the quality of aeration delivered to your pond, tank or lagoon. These stones have been specifically designed to work well in an earth bottom pond. The 7