The HydroAir is a lightweight and highly efficient air supply diving system. The HydroAir is powered by a group 24 deep cycle marine battery or other similar 12 volt battery configuration. The dual air compressor system maximizes battery life by working only on demand by use of pressure switches. The compressors are mounted under water for cooling and providing minimum power draw and optimum air output. The sealed environment of the HydroAir system provides for its longevity and dependability. Its construction is of a heavy duty Marlex plastic in a "safety orange" color for high visibility and it is extremely stable, even in rough water conditions, due to its low center of gravity. Virtually maintenance free, the HydroAir is quick, easy and fun to use! The HydroAir comes equipped with flotation, a vinyl float cover, stainless steel hardware, diving flag, built in straps and handles for easy carrying. Hose and battery are not included. Specifications: Body Dimensions - 23" x 18" Floatation Dimensions - 13" x 32" Running Time - 2 to 4 hours depending on consumer requirements. One Diver can achieve 75 feet in depth. Two Divers can achieve 25 feet in depth Net weight – 29 pounds Unfortunately, due to shipping restrictions we are unable to offer the appropriate battery for this system. We apologize for any inconvenience.