Gardena | Hose Coupling The Gardena Hose Coupling is the ideal solution for extending or joining hoses with ease. This extension joint makes connecting hoses quick, simple, and hassle free. Whether you need to lengthen your hose or connect different diameter hoses, this coupling has you covered. Easy to handle for a comfortable, secure grip. Ideal for extending hoses quickly and efficiently. Compatible with hoses of different diameters, including 19mm (3/4") hoses. Simple to use, making it perfect for both beginners and seasoned gardeners. Durable construction for long lasting performance. Lightweight design, easy to carry and install. With the Gardena Hose Coupling, you can easily extend your garden hose or connect multiple hoses without any frustration. Don't let hose limitations slow you down—get your Gardena Hose Coupling today and make your garden tasks a breeze!