This biological treatment uses powerful enzymes to break down waste and tissue in your RV’s holding tank whilst controlling odours naturally. The unscented formula works safely in grey and black tanks without harsh chemicals or formaldehyde, keeping your tank system functioning smoothly on long trips or during storage periods.

• Type: Biological enzyme treatment
• Dosage: 1 ounce treats up to 5 gallons
• Packaging: Box of four 8-ounce bottles
• Formaldehyde-free and unscented