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Brass 90-degree elbow fitting with flange and threaded end

Nibco, Inc.

Nibco, Inc. 708LF-12 90° elbow trap 1/2 in

SKU CH-99V5-WF69S MPN 708LF-12

A 90-degree sink-flanged elbow connects 1/2-inch tube to 1/2-inch FNPT piping in low-lead cast bronze rated to 577 psi

  • TypeDrain Components
  • MaterialHAWA
  • 90-degree elbow directs flow in tight spaces
  • Low-lead cast bronze meets NSF/ANSI 61 Annex G
  • C x FNPT connection fits 1/2 in tubing
  • Rated to 577 psi for reliable service
  • Operates from -20 to 200 degrees F

Lead-free bronze elbow for 1/2-inch copper supply

This 90-degree fitting connects 1/2-inch copper tubing to a female NPT thread on sink drains or similar fixtures. The low-lead cast bronze body meets NSF/ANSI 61 Annex G for potable water use. It is intended for plumbers and DIYers joining supply lines in residential or light-commercial installations.

Slip the copper tube into the C end

Clean and deburr the 5/8-inch outside-diameter tube before insertion to avoid leaks. Apply flux and solder the cup joint using lead-free alloy; overheating can damage the bronze. The threaded FNPT side requires pipe sealant or tape — cross-threading the 1/2-inch connection is the most common error.

Verify tube diameter and pressure rating before

Confirm the existing supply line measures 5/8-inch OD so the cup joint seats correctly. Check that system pressure stays below 577 psi and operating temperature remains between -20 and 200 degrees F. This fitting does not suit larger tubing, higher pressures, or gas service.

Highlights

  • 90-degree elbow directs flow in tight spaces
  • Low-lead cast bronze meets NSF/ANSI 61 Annex G
  • C x FNPT connection fits 1/2 in tubing
  • Rated to 577 psi for reliable service
  • Operates from -20 to 200 degrees F

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model708LF-12

Questions about this item

How can I verify the 90° elbow trap is seated correctly after installation?

Check that the C x FNPT connection is fully engaged with no visible gaps and that the 1/2 in tube aligns flush with the sink flange.

What components come with the 708LF-12 and what must I source separately?

The fitting itself is supplied; you will need compatible 1/2 in copper tube, thread sealant or tape, and any mounting hardware required by your sink.

When should I choose this 1/2 in low-lead bronze version over other sizes?

Select this model when your supply line is 1/2 in, the system pressure stays below 577 psi, and the operating temperature remains between -20 and 200 °F.

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