The SMC KCL06-99 KC Series Self-Seal Fittings offer a seamless solution for your pneumatic needs. Designed for easy one-touch installation and removal, these fittings ensure a hassle-free experience. The built-in self-seal mechanism guarantees that air does not exhaust after the tubing is removed, maintaining system integrity. Additionally, these fittings are copper-free, featuring an electroless nickel plating for enhanced durability and corrosion resistance. Ideal for various applications, these fittings provide reliable performance and convenience.