Marine Metal Cool Bubbles Insulated Hard Shell Bucket -The Marine Metal Cool Bubbles Insulated Hard Shell Bucket has a pump which runs up to +/- 40 hours with 2 alkaline D batteries, also runs on 1 battery. The bucket has a impact resistant case with rubber booted switch. Special weighted air stones provide greater dissolved oxygen. 5 gallon bucket. Bubbles B-11 model pump runs up to +/- 40 hours with 2 alkaline D batteries, also runs on 1 batteryImpact resistant case with rubber booted switchPumps 1.4 STL / minuteHard shell bucket with .562" insulating foam linerSpecial weighted air stones provide greater dissolved oxygen5 gallon bucketMPN: CB-115