The Dometic Toilet Bowl and Seal Cleaner cuts through mineral buildup and stains without using harsh chemicals that can damage seals and other components of a marine sanitation system. The powerful yet gentle eco-friendly formula is bleach-free, non-toxic, and biodegradable—safe for seals and tank components. The convenient 24 oz. jet-spout bottle reaches under the rim for complete coverage. Works seamlessly with Dometic MAX CONTROL natural holding tank treatment to keep your head in top condition. Stay on the water longer with Dometic sanitation products.