All Ritchie founts carry a ten-year warranty. On poly units, this is five years full warranty, with a prorated (20% per year) warranty the last five years. Stainless steel troughs and frames carry a full (100%) warranty for 10 years. Steel casings, access panels, and covers carry a prorated (10% per year) warranty for ten years. Valves and heaters are warranted for one year from the date of purchase. Read the full warranty here.