Wavin Hep2O 15mm Straight Connector White Push-Fit includes unique features that enable quick and easy installation with a secure fit. It is the only push-fit plumbing system with joint recognition, secure demounting and a 50-year guarantee. A secure fit every time thanks to Wavin's In4Sure security feature. Once the connection is in place, twist the pipe or fitting and feel the"rumble", signalling a perfect fit. Fittings can be easily adjusted with the HepKey demounting system. Simply clip the HepKey over the fitting to depress the collar and release the fitting. This system prevents tampering or accidental demounting and ensures your installation is totally secure.