15 YEAR WARRANTY AGAINST STRUCTURAL FAILURE

Those models listed as having a 15 year warranty are guaranteed, that from purchase to within 15 years of normal use, the fittings will not deteriorate to any extent where they experience any structural failure.  There may be signs of aging, corrosion or paint fading, but the integrity of the construction of these fittings means they will not deteriorate to any extent where they are rendered unusable within a lifetime of 15 years.