Marine Metal B15 aeration System Power Bubbles 12V DC 12 V DCw, very low current +/- .46 amps, Twin bellows and double outlets produce aeration of 1 or 2 live wells up to 35 gallons High volume twin bellows pumps 5.6 STL/min, Weighted glass bead airstones provide greater dissolved oxygen Produces 99.5 % saturation of dissolved oxygen High volume twin bellows pumps 5.6 STL/min Widely used for catch and release tournaments Excellent emergency aquarium pump up to 100 gallons Easy to install in boat panel Every unit is tank tested to assure quality