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There are 4 products.

GPB Hollow Hex Plug

Produced in different sizes, materials, and abilities, the GPB hollow hex plugs were developed with the finest raw materials and advanced designs. Providing process control with its wrench flat in order to allow for standard Hex wrench assembly, each plug was developed for simple configuration and tight connections of piping or tubing systems. View the products below to find more details on each item. If you have any questions concerning any of our items, please contact us at or chat with us live.