Check the listing for details. 1/2 acre 30' Complete Fishpond Aerator System EZ- Pro 3 PLUS Kit Septic Aerator. Condition: New. Listed at 307.00 USD. This is for a brand NEW Fishpond Aeration system. Can be used for ponds, lakes, koi ponds, fish tanks, septic tanks, stock tanks, and any other body of water requiring sub surface aeration. The MEA Pro 3 Plus Kit includes: Matala HK40LP Air Pump. -Air flow up to 70 lpm or 205 cfm.-Maximum water depth 14 feet.-Suggested water depth up to 7 feet.-Only 38 watts!-For Ponds between 5000 to 16,000 gallons up to 1/2 acre!MD-7W Weighted Base with 7 inch Disc Diffuser -Award winning design.-7 inch EPDM Disc Diffuser.-Produces medium size bubbles.-Lowest back pressure diffuser on the market for maximum air flow and longest life for the air pump. -Self Cleaning, no maintenance required. Very long lifetime.-Weighted Base is fish friendly.-Hose clamp connectors included.Weighted Air Hose -30 feet high quality 3/8" weighted hose.-Will not kink or crush.The Hakko pump has a 3 year limited warranty but does not cover wear and tear parts like the diaphragms and magnets. These items will wear out depending on the level of heat in the individual system. Variable that affect heat are: -Depth of water. -Type, age and condition of the air diffuser. -Distance of air hose. -Diameter of air hose. -Location of air pump in a well ventilated or non-ventilated area. Keep air pumps in a cool location with adequate ventilation. If the pump is located inside a box or fake rock it would need a fan to keep it ventilated and cool.