NIBCO 906 3 DWV Elbow,45 Deg.,Wrot Copper,3",CxC 39R687

About this item

The NIBCO 906 3 inch DWV 45 elbow is a wrot copper fitting with cup (C x C) ends, made for drain, waste and vent piping rather than pressurized supply. An independent eBay seller lists one new piece for $54.91, with reference 39R687 in the title.

Can a 3 inch DWV 45 elbow be used on water supply lines?

No. DWV fittings are made for gravity drainage and venting, not pressure service, so keep this one on drain stacks, building drains and vent runs. Your local plumbing code decides what's acceptable.

• Joining: sweat both ends to 3-inch copper DWV tube with flux and solder.
• 45° turn: plumbers often pair two 45s for a gentler change of direction in drainage.
• Older homes: a good match when you're repairing existing copper drain lines.
• Inspect the photos for the 906 marking and overall condition.

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