DRAIN VALVE LUBE 24oz

Thetford's Drain Valve Lubricant is an additive for drain valve and holding tank systems.

Features:
• Size: 24 oz bottle
• Prevents sticky valves and restores operation
• Coats plumbing lines for smooth tank outflow
• Works in both grey and black water tanks
• Non-staining
• Formaldehyde-free
• Environmentally safe