Here you will find different adapters on the faucet of your IBC container. You have a choice of Stainless steel, PE-HD (HDPE) or PP (Polypropylene) manufactured adapters with a built-in seal. IBC valves with 2" BSP fine thread. Also called American valves or barrels. Are not common. If you are in any doubt about the right screw thread, email pictures of your valve to email@example.com We will be happy to assist you.