If the 8 m water hose in the JBL PROCLEAN AQUA IN-OUT is not enough, we offer an 8 m water hose extension set For the extension: pull the original hose off the gravel cleaner, screw on the hose connector provided and insert the hose piece in between The hose connector provided contains a hose locking nut on each side to securely fasten the hoses This extension set fits all 12/16 hoses Package contents: 8 m 12/16 hose, 1 hose connector incl. hose screw locks