Specially formulated for boats and RVs, Star Brite Toilet Bowl Cleaner removes water deposits and stubborn stains from plastic and porcelain toilet bowls with no scrubbing required. It contains no harsh chemicals so it won't damage plastic, rubber seals, or metallic parts, and it won't interfere with most holding tank treatments.
Safe to use in all marine and recreational vehicle toilets. Available in a 16 oz. bottle.