Thetford - 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.

Features:

• Prevents sticky valves
• Restores operation
• Coats plumbing lines for smooth tank outflow
• Works in both grey and black water tanks
• Lubricating additive