Alumina Airstone – 1 1/2" X 1 1/2" X 9" - 1/2"NPT 

“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.

Features:

• “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 with muriatic acid or chlorine
• More resistant to ozone
• Creates finer bubbles for increased aeration efficiency with no increase in pressure

Additional Information:

• Dimensions 1 1/2" x 1 1/2" x 9"
• Inlet 1/2" npt
• Recommended Flow Rate .75 cfm
• Weight 2 lb