75' of 3/8" ID Self Sink Weighted PVC Aerator Hose-Lake Fish KoiPond Quick Sink
NEW 3/8" I.D. Self Sink Weighted Aeration Tubing - 75 Foot length. Tubing easily attached to your compressor on one end and diffuser on the other end and will sink on its own ( no need to weight it down and hope it stays - IT Will! ).