[VERSATILITY]: Thetford's Drain Valve Lubricant is designed to work with RV and boat drain valves
[FUNCTIONALITY]: Coats the plumbing lines for a complete outflow of the tank contents
[UTILITY]: Prevents sticky valves, ensuring a smooth operation during the emptying process
[CONVENIENCE]: Formulated to work with grey or black water tanks
[SAFETY]: Drain Valve Lubricant is 100% biodegradable and safe for all waste treatment systems

 
 THETFORD RV Drain Valve Lubricant - 24 oz 15843