Walex Pplav2 Porta-Pak Holding Tank Deodorizer - Lavender Pack of 2. Walex designed these Hygiene and Sanitation products with Formaldehyde-free formulas that break down waste and paper without any messy liquids sprays or solids. This Walex 2-Pack Porta-Pak Small Holding Tank Deodorizer is biodegradable and a mess-free solution to breaking down waste and paper while lubricating valves and seals for positive user experiences. With this 2-pack you get unbeatable odor prevention capabilities for your portable toilet that is especially useful when in use with other people. Keep one in your vehicle in case a backup happens and just drop a single Porta-Pak into the holding tank and add water. There's no easy way to use this product; just drop a single Porta-Pak into the holding tank and add water. Stop the nonsense of messy liquids messing with your toilet and use this Walex Pplav2 Small Holding Tank Deodorizer instead. Features of Walex Pplav2 Porta-Pak Holding Tank Deodorizer - Lavender Unbeatable odor prevention Breaks down waste and paper Biodegradable and Formaldehyde-free Drop a single Porta-Pak into the holding tank and add water Quantity: 2 Pack Package Contents: Walex Pplav2 Porta-Pak Holding Tank Deodorizer - Lavender Walex PPRV2LAV: Pplav2 Porta-Pak Holding Tank Deodorizer - Lavender Pack of