Jones Stephens has built its reputation over the years as a leader in the plumbing industry, providing the market with thousands of products to complete any project. Flexible Cap from Jones Stephens is designed for use with cast iron and Schedule 40 pipe and is used to cap open pipe ends, cleanouts, and test pipes. It is reusable so that it can be installed temporarily or permanently. The clamp includes a 5/16 in. hex screwdriver slot.