One-step, fully demountable and reusable. Combining push-fit and twist-locking technology to offer a secure, leak-free joint which incorporates pressure and combination systems. Suitable for plumbing, local / home hot water supply and central heating systems. Highly visible green band disappears when properly connected. Works with different piping materials such as copper, PB and PEX pipe, making it easy to combine different types of pipe for repairs or new installations.