Say goodbye to harsh chemicals and hello to a clean, fresh-smelling RV toilet with Liquified RV Toilet Bowl Cleaner. This natural, enzyme-based formula is tough on stains and odors but gentle on your black tank's healthy bacteria. Specifically designed for RV toilets, it's safe for septic systems, eco-friendly, and leaves your RV toilet with a refreshing citrus scent. Tough on Stains and Odors â Effectively removes tough stains and odors, leaving a fresh citrus fragrance. Supports Black Tank Health â Unlike harsh chemical cleaners, this formula supports the natural "microbiome" of your black tank. Eco-Friendly and Septic Safe â 100% biodegradable, formaldehyde-free, and safe for pets and children.• 24-oz. squeeze bottle• 100% biodegradable• Septic safe with no harsh chemicals• Cleans stains and odors Specifically designed for RV toilets & safe for septic systems Leaves a fresh citrus fragrance 100% biodegradable & formaldehyde-free | Camping World Liquified RV Toilet Bowl Cleaner, 24 oz in Black