The Veloci KobraJet 50' 4,000 PSI Non-Marking Hose with SS Coupler is a must-have for any pressure washing application. This smooth blue hose is available in various lengths to accommodate all cleaning scenarios. It features a thicker inner wall to prevent gashes and ruptures, ensuring durability and longevity. Made with high quality components and assembled in the U.S using 'Bite the Wire' technology, this hose is built to last. The 3/8 inch coupler is easy to install and provides a secure connection. Say goodbye to messy and unsightly marks on surfaces with this non-marking hose. Trust Veloci for all your pressure washing needs.