Thetford Drain Valve Lubricant solves holding tank problems.
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.
Before You Order
Verify part number 15843 exactly Match the listed product details to the part you are replacing before ordering. Compare dimensions, specifications and fitment information with your RV or component.
Frequently Asked Questions
What part number should I verify before ordering?
Verify 15843 on your existing part, documentation or equipment label before ordering.
How should I confirm this part fits?
Compare the listed part number, dimensions, specifications and fitment details with your existing component. Do not rely on appearance alone.
