Used to diffuse air for your septic tank or many other applications. For 500+ GPD systems we recommend This Larger Diffuser Here
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Number of reviews : 3Average rating : 4.7 /5M. Geoffthe 29/07/20155/ 5Exactly as describedJ. Wesleythe 24/06/20154/ 5works greatP. Barrythe 28/05/20155/ 5Works great! I used it to make my septic tank into an aerobic system.