“Alumina” 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.
AS15 Alumina Airstone – 1 1/2" X 1 1/2" X 1 1/2" – 3/16" barb
SKU: AS15
$11.39Price