Excerpt: Installation: <br />- Materials you need to buy yourself for installation: <br />* water supply line and elbow connector for water. These typically come in a dishwasher installation kit at your hardware store in lengths of 5 and 8 ft. I needed to connect over 10 ft, so I bought both the 5 and 8 ft and connected them with a copper 3/8 inch compression type connector. Sets cost about $12-14. Connector was another $6.