This 58-400 polypropylene continuous thread closures features a smooth top and side. Ideal for most containers with a 58-400 neck finish and is a host to a F217 liner.
The F217 liner is composed of a foam disk sandwiched between two layers of LDPE plastic and creates an additonal barrier for the complete package. F217 liners assist in preventing moisture from entering the container and ensures product integrity by being odorless and taste resistant. You will find this closure and liner to be compatible with most formulations of product.