The Pond Guy Pond Aerator 1, Complete Aeration Kit, Add Oxygen to Koi & Fish Water Garden Ponds, Outdoor Diaphragm Compressor Pump, Air Line, Faux Grey Stone Rock Cover & 1 Submersible Diffuser Stick Price: $249.98 (as of 02/01/2024 23:48 PST- Details)

Small Aerator for Ponds up to 3,000 Gallons and 4 Feet Deep — Increases water circulation and oxygen saturation, improving the natural ecosystem. Ideal for a backyard pond or small outdoor fishpond.
Improves Water Quality & Clarity — Bottom-diffused aerators push air through a diffuser stick and into your pond. Aeration supports beneficial bacteria, that clear pond water and eliminate pond muck.
Quiet Operation & Energy Efficient — Electric compressor equipment has near-silent operation and is designed to run 24/7, using only 17 watts of power. Aerate your koi pond for just pennies a day.