The 5 Gallon version is for round insulated 5 gallon beverage containers, like Rubbermaid coolers, or any container with at least a 9" opening at the top - such as a bucket.
The 10 gallon version is for round insulated beverage containers with an opening of at least 12".
The 10 gallon false bottom can be used in converted sanke kegs as well.
Made from stainless steel with 3/32 perforated holes on 5/32 centers. The barb fitting is 3/8 inch.