Flexible Tap Hose Connector Pack of 2 - Compression or Push Fit or Push Fit with isolating Valve 300mm Long (15mm Pushfit x 3/4"F x 300mm Long) : Amazon.co.uk: DIY & Tools
Hep2O HD225B/22W Flexible Tap Connector 22mm x 3/4in x 500mm | Travis Perkins
Amazon.com: Resway CPAP Tubing | White 15mm Diameter | Universal CPAP Hose Compatible with Most Machines & Masks | Easy-Grip 22mm Ergonomic Cuff for Secure Fit | Lightweight Flexible Tube 6 Feet