Gamma Seal Lids are a great option for grain storage. They fit on top of a standard 5 – 7 gallon buckets and provide an airtight seal. An outer ring snaps on the bucket. The inner portion of the lid screws on and off for easy access to grain. So, you get an airtight seal without having to pry off the lid. The general rule of thumb is… a 50 lb sack of grain will fit in two 5 gallon bucket.
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