Excellent condition, always cleaned promptly and thoroughly. Carbon steel frame. 3 (removeable) locking industrial casters, great for smaller breweries with space constraints. We had a 7 bbl system and were able to cool from 200F to 68F with ground water (any time of year) in about 45 minutes. We usually reclaimed around 6 bbl of cooling water at about 170F that we subsequently used for cleaning. Plenty of room to add plates if necessary.