Product Description Hakko Air Pumps are high volume diaphragm pumps designed for a variety of low-pressure applications. Koi pond aeration, large aquarium aeration and earth pond destratification are only a few of the many applications for Hakko pumps. Hakko pumps are compact, affordable, energy-efficient, and very, very quiet (less than 28 decibels) Hakko units utilize linear-motor theorem to reduce power consumption during full operation. Units are extremely quiet using spectrum analysis technology in order to decrease any mechanical noise. Product Features No oil needed for lubrication making Hakko Air Pumps easy to maintain These are the best air pumps available today Suitable for use in freezing temperatures as long as the air pump itself is not exposed to freezing temperatures - locate in the garage above freezing Must be installed a minimum of 12 inches above pond water level to prevent water from flowing back Not submersible Product Specifications HK-25 Air Pump Maximum Pond Depth 11.5 ft. Maximum Air Flow 30 LPM / 1.1 CFM Submersible no Required Air Tubing Diameter 5/8" Dia. Power Consumption 17 W Warranty 18 months
