[VERSATILITY]: Thetford’s RV Toilet Seal Lube & Conditioner works with all permanent or portable toilets found in RVs and boats. [FUNCTIONALITY]: Penetrates the toilet seal, lubricating and protecting. [UTILITY]: Helps prevent waste from sticking, ensuring smooth toilet operation. [CONVENIENCE]: Toilet Seal Lube & Conditioner can be used on toilet seals and on holding tank seals. [SAFETY]: The petroleum-free, silicone-based formula is safe on seals, prolonging their life. Petroleum free lubricant extends toilet seal life. Helps prevent sticking and promotes smooth toilet operation. Penetrates seal to lubricate and condition entire seal. Use throughout season and for winterization. Compatible with Thetford chemicals and RV/Marine antifreeze.