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.
Lubricates valve for easy operation. Non-staining, formaldehyde-free and environmentally safe. 2 oz./40 gal. tank. USA.
Below is a video that shows a few features of this item.
Thetford Drain Valve Lubricant solves holding tank problems.
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