Review on Enhanced Performance with Knock Buttress Coarse Thread Gasket: The Ultimate Gasket for Industrial Applications by Mike Wallace

I bought this plug to help my parents save emergency water in one of their kegs outside. They have old barrels and some of their plugs were nowhere to be seen. After reading good reviews this was the first thing I tried and it works and seals the drum well. I would recommend this product if you are looking for a keg lock lid that you have. The photos show one of the old caps and the new cap in the drum.