I have two 12" tri-clamp lids with heavy duty 3/8" handles and 1.5" tri-clamp ports in the center TIG welded and polished. These lids came with my Glacier Tanks fermenters and are HEAVY duty. You could weld a ferrule to a keg and make a nice fermenter with large opening. You could add a tower for distilling oils. The uses are endless. $75.00 each plus $15.00 shipping USPS Priority to US address. Shipping same if you buy one or both.