TL;DR
A tailpiece is the straight drain tube that drops from a sink, lavatory, or tub waste outlet down to the trap, joined at each end with slip-joint nuts and washers. Standard diameters are 1-1/4 inch for bathroom sinks and 1-1/2 inch for kitchens, in chromed brass or PVC, with flanged, branch, and dishwasher-inlet variations.
What it means
A tailpiece is the straight drain tube that drops from a sink, lavatory, or tub waste outlet down to the trap, joined at each end with slip-joint nuts and washers. Standard diameters are 1-1/4 inch for bathroom sinks and 1-1/2 inch for kitchens, in chromed brass or PVC, with flanged, branch, and dishwasher-inlet variations. Because the slip joints make it the easiest piece to remove, it is also where most under-sink leaks and clog access points show up.
Where it sits in the glossary
Tailpiece is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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