Thetford Drain Valve Lubricant for Grey & Black Water Holding Tanks – 24 oz. Bottle

Thetford’s Drain Valve Lubricant is specially formulated to prevent seal wear and sticky drain valves. It works in both grey and black water holding tanks. It lubricates holding tank systems and drain valves from the inside.

• Thetford Drain Valve Lubricant
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• Type: Liquid
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• Size: 24 oz. Bottle
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• Works in Both Grey & Black Water Holding Tanks
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• Lubricates Holding Tank Systems & Drain Valves from the Inside
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• Coats Plumbing Lines for Consistent Tank Outflow
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• Restores Smooth Operation of Valves
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• 100% Biodegradable Formula