Meets or exceeds industry certification standards & requirements of most appliance manufacturers ; 1/4 FCM (Female Compression) x 1/4 FCM fittings with washers ; Polyester-reinforced PVC connector with permanently attached stainless steel couplings for secure connection ; UPC (Uniform Plumbing Code(R)), NSF 61 & 372 lead-free (National Sanitation Foundation) & CSA (Canadian Standards Association) certified ensures product safety ; Durable design protects against bursting & cracking ; 5-year limited warranty;