“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.
AS950 Alumina Airstone – 1 1/2" X 1 1/2" X 9" – 1/2" NPT
SKU: AS950
$32.29Price