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Review title: Poor quality
Product review: I was disappointed in this product. The construction was cheap and fragile, and it did not diffuse air. It produced only two bubble streams, one at each end of the rod, rather than a wall of bubbles as indicated in the advert. Maybe mine was defective, but I returned it an used a regular air stone instead. It did come with two decent suction cups and an adapter for either straight tubing connection, or "L" connection from vertical to horizontal. That was a nice touch - but meaningless if the air stone did not do a good (or even decent) job!
