Wall connection: 16 mm external thread. A good vending machine for beer, wine and drinks. Made from SUS304 stainless steel to ensure reliability. Lead-free to ensure health Easy to install The beverage dispenser faucet is made of high quality 304 stainless steel, lead-free and will not rust. Using the latest CNC machine processing and high quality silicone, ball valve 90 degree rotatable for excellent sealing and wear resistance. Combined with a strainer disc to prevent clogging of the container. Now enjoy the party with your family and friends! Product Name: Beverage Dispenser Faucet Finish: Polished stainless steel Please carefully check the size of the faucet and your beverage dispenser before ordering. The thread diameter is 16mm, we suggest the installation hole on your beverage dispenser is 16mm to 20mm.