Air Volume 2900 cu. in/min These beautifully designed environmentally friendly pumps can be used for: Oxygenating aquariums for a cleaner aquatic environment promoting healthier fish and aquaic plant life increasing the breakdown of fish waste Preventing icing oveR in ooutdoor ponds and driving protein skimmers. Maximum water depth 10 ft. Noise level 40 dba. Air Diffuser Outlets 12. Tubing (not included) 1/2" I.D. Pressure 5.8 psi. For saltwater and Freshwater aquariums - All AP Series air pumps operate on standard 110V electric and come with a 6 ft power cord. Energy efficient motor. Easy to use. Quiet operation. High volume with steady air flow. 40 watt Size - 9 lbs.