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Bronze drop-ear elbow, 90-degree C x FNPT fitting, 3/4 inch tube and pipe size

Nibco, Inc.

Nibco, Inc. 70735LF-34 Drop Ear Elbow trap

SKU CH-5CXC-S1Z2Q MPN 70735LF-34

Low-lead bronze 90-degree drop-ear elbow connects 3/4-inch tube to female pipe threads, rated to 466 psi and 200 degrees F

  • TypeDrain Components
  • MaterialHAWA
  • Low-lead bronze for safer potable water systems
  • 90-degree drop-ear elbow simplifies wall-mounted pipe routing
  • C x FNPT connection fits 3/4-inch tube and pipe directly
  • Rated to 466 psi for reliable high-pressure performance
  • Certified to NSF/ANSI 61 Annex G for drinking-water compliance

3/4 in Drop Ear Elbow

The Nibco 70735LF-34 is a 90-degree drop ear elbow made from low-lead cast bronze. It connects 3/4 in tube to 3/4 in FNPT threads for plumbing installations. The fitting meets NSF/ANSI 61 Annex G standards for drinking water safety. It is rated for pressures up to 466 psi and temperatures from -20 to 200 degrees F.

Replaces non-compliant or worn fittings

Swap out older brass elbows that do not meet current low-lead requirements for potable water systems. The upgrade is worth it when codes require Annex G compliance or when existing joints show corrosion or leakage. The cast bronze body provides durability in hot and cold water lines. It fits standard 3/4 in copper tube and female pipe threads.

Fits 3/4 in copper and FNPT connections

The elbow needs 3/4 in copper tube on one side and a 3/4 in female pipe thread on the other for a secure joint. Its drop ear design allows mounting to a structural surface for added stability. The 7/8 in outside diameter clears standard tooling during installation. No special adapters are required beyond the stated tube and pipe sizes.

Highlights

  • Low-lead bronze for safer potable water systems
  • 90-degree drop-ear elbow simplifies wall-mounted pipe routing
  • C x FNPT connection fits 3/4-inch tube and pipe directly
  • Rated to 466 psi for reliable high-pressure performance
  • Certified to NSF/ANSI 61 Annex G for drinking-water compliance

Specifications

TypeDrain Components
MaterialHAWA
BrandNibco
Model70735LF-34

Questions about this item

What tube size and connection type does the 70735LF-34 drop ear elbow require?

The elbow uses a 3/4 in tube size with a C x FNPT connection type for direct solder and threaded joints.

How is the drop ear elbow secured during installation, and what step is often missed?

The drop ear tabs are fastened to framing with screws or nails; the step often missed is anchoring both tabs before soldering to prevent joint stress.

What temperature and pressure limits determine when this fitting needs replacement?

Rated for -20 to 200 degrees F and 466 psi; replace if system conditions exceed these limits or if corrosion appears on the low lead cast bronze body.

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