This 5pc 1/4" NPT M Style Coupler & Plug Kit is a high-quality product manufactured by Milton Products. It is designed to fit Milton S211, S716, and S699 models. The kit includes 1 coupler and 4 plugs, all with a 1/4" NPT M style connection. The coupler and plugs are made from durable materials to ensure longevity and reliability. This kit is perfect for use with air tools and is backed by a 90-day warranty. Get your hands on this top-of-the-line coupler and plug kit today!