#1 selling septic aerator in the USA. Premium quality and longevity.Quiet, energy efficient, oil/ lubrication free, outdoor UL ratedAeration for ponds up to 1/2 acre at 10' or less in depth. Helps keep water clean and clear. Promotes healthy oxygen levels for fish to thrive and grow. Circulates water - evenly distributing oxygen and water temperature.Can be rebuilt 2 times for the fraction of the cost of a new aerator. See HIBLOW's website - support page for a video tutorialHose connector included: 5/8" ID 90 degree L tube with clamp. Barb fitting size 5/8" OD (barb not included)Pond Aeration tubing recommendations: Distances between 50-100' use 1/2" ID tubing. 100'+ use 3/4" ID tubingUse a medium bubble diffuser (3mm-5mm bubbles) for best results and pond aerator life