The L065B is a black phenolic 13-425 lid with a F217 liner. This closure includes an F217 trifoil liner, which will create an airtight seal when the lid is securely screwed on to the container.
This lid is made of phenolic, an industrial grade, highly rigid, plastic with a good resistance to solvents and high temperatures. This closure fits a container with a 13-425 neck finish. The first number refers to the diameter of the container's opening (in mm). The second number refers to the thread/style/depth of the closure's skirt. Please read 5 seals and how they make perfect liners for your container for more information on liner types.