3 Way CO2 Manifold with Integrated Check Valves and MFL Fittings Bundle by Kegconnection Set Includes: 3 Way CO2 Manifold with Integrated Check Valves and MFL Fittings; (3) 1/4 inch Barbs; (3) 5/16 inch Barbs; (3) Swivel Nuts; White Washers; and a Kegconnection keychain bottle opener Integrated check valves help prevent beer backflow (via the CO2 connection) from one line to another. This allows you to split a single CO2 output (from a primary or secondary regulator) into 3 runs The 1/4 inch barbs; 5/16 inch barbs; and swivel nuts allow this air distributor to be used with 1/4 inch or 5/16 inch ID Lines (ID Lines Not Included) The white washers help ensure there is no metal to metal contact; which prevents air loss Set assembled in the USA. Shipping Rate is for Continental US ONLY.