Thetford Drain Valve Lubricant 15843

Thetford RV Drain Valve Lubricant – 24 oz 15843

Here’s an ounce of prevention in a 24-ounce bottle. Our special formula prevents seal wear, sticky drain valves and keeps all the plumbing lines operating smoothly. Your holding tank is critical to your RV, and preventative maintenance is key to keeping it healthy. Regular use of these products helps prevent problems from occurring while extending the life of your RV.