EasyPro AS337 Alumina Airstone – 1 1/2" X 1 1/2" X 3" – 3/8" barb waterfall Over-sized inlet & outlet ports

Over-sized inlet & outlet ports plus 3" diameter housing

Atlantic's professional Back Flush Kit virtually eliminates FilterFalls maintenance

lightweight Bio-Balls that are easy to clean and reduce channeling

The ECOBLOX-SMALL has a capacity of 15

30 watt solid state Transformer is fully weatherproof for worry-free outdoor installations

EasyPro AS337 Alumina Airstone – 1 1/2" X 1 1/2" X 3" – 3/8" barb waterfall Over-sized inlet & outlet portsAlumina air stones three times stronger than white silica air stones! Produces a finer bubble with no increase in pressure. Inlet fittings are set into the body of the diffuser, making them much less likely to break or twist loose. Alumina air stones three times stronger than white silica air stones! Inlet fittings are set into the body of the diffuser, making them much less likely to break or twist loose Higher density means self weighting Cleanable