Why throw away a perfectly good bucket when you now can Gamma Seal it? The Gamma Seal lid permanently transforms your 12" diameter bucket into an airtight leak proof storage container. Now a bucket can be used for hundreds of household storage applications such as storing pet food, dry goods, paint, hardware, or even boating and camping supplies! Simply snap the patented adapter onto your bucket and spin on the removable lid. Specially engineered gaskets ensure that the lid and adapter are properly sealed to guarantee airtight protection. The Gamma Seal lid fits virtually any 3.5 to 7 gallon bucket including 20 liter. Best of all Gamma Seal lids are made right here in the U.S.A.