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The Mainline ML85015 is a four-inch low pressure glue-on test plug designed for drain waste vent (DWV) applications. This test plug offers a reliable solution for sealing pipe openings while testing the integrity of plumbing systems. It is suitable for use in low pressure settings where secure, leak-free operation is needed.
This test plug simplifies plumbing inspections and repairs, ensuring easy access for maintenance work.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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