The CTS SlideLOK coupling is a ready for installation coupling designed to reduce installation time. The slide action allows for a smooth trouble free installation. The patented gasket provides four separate sealing surfaces for added protection. The engineered predictive gap is a quick and easy indication of proper assembly. The CTS SlideLOK is designed to be used with copper tube sizes 2" - 8" and produces a secure, rigid joint connection. The CTS SlideLOK coupling allows for a maximum working pressure of 300 psi for Type K or L. Contact an Anvil Representative for other copper tube pressure ratings.