AP-20, 1700 CUIN/Minute Pond Air Pump, With Diffuser, Operate On Standard 110V Electric, Come With 6' Power Cord, Oiless Motor Is Designed To Operate Efficiently & Save Energy, Oxygenates Ponds, Aquariums, & Hydroponic Systems, Promotes Healthier Fish & Aquatic Plant Life, Also Will Prevent Icing Over In Winter.