Whether you're making a carbon fiber, Kevlar or fiberglass part this set will give you a great head start on gathering your supplies. Includes: 2 vacuum bagging ports, 1 pressure gauge, 1 quick release vacuum fittings with two-way shut off. It does not include a barb fitting. This allows you to use any size and type of vacuum line you wish. All you need is a male ¼” NPT fitting with the appropriate barb size. This hardware kit is an essential part of any vacuum bagging set up regardless of the material used for the part or bagging process. Buying this kit allows you to choose your vacuum bagging film, peel ply or release material and laminate cloth of choice.