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3×4" B-Style Elbow

3×4" B-Style Elbow

Color: White, 30 Degree
Unit of measure: pcs
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Expected ship / pick-up date:
06 Oct | Typically ready in 1-2 days
We're ready to help. Call us at (610) 779-6934 and we'll happy to answer your questions.

Navigate corners and guide rainwater with maximum flow efficiency. Our 3x4" B-Style Downspout Elbows feature symmetrical construction that creates optimal water flow for large-capacity drainage systems. Manufactured from heavy-gauge aluminum (.019" or .024" available) and finished with the same baked-on enamel as our Gutters and Downspouts, these Elbows provide superior flow performance while positioning Downspouts optimally away from building structures for enhanced clearance and maintenance access.

3×4" B-Style Elbow Key Features

  • Maximum flow efficiency

    Symmetrical design with equal openings creates gentler turns that maximize water velocity and reduce turbulence in high-capacity 3x4" systems

  • Heavy-duty construction

    Available in .019" or .024" aluminum gauges with reinforcing corrugations for superior strength in demanding large-scale applications

  • Optimal clearance positioning

    B-Style configuration positions large Downspouts further from the house, providing better access for landscaping and building maintenance

  • Professional grade connections

    Precision-formed joints ensure secure, leak-resistant performance; coordinate with 20+ color-matched finishes for complete system integration

3×4" B-Style Elbow Material & Specifications

Profile: B-Style Elbow for 3x4" Rectangular Downspouts
Material: Heavy-gauge aluminum (.019" or .024")
Angle: Typically 75-90° (custom configurations available)
Finish: Baked-on enamel in 20+ color options
Compatibility: 5" and 6" K-Style Gutter Systems with 3x4 Downspouts

Installation & Maintenance Tips

This installation information is a general guide only and may not address your specific site conditions. Always follow local building codes, safety practices, and professional methods. If you are not experienced with this type of work, hire a qualified contractor.

Installation
  1. Measure & fit: Test-fit Elbows dry; mark cut lines on Downspout; allow 1-2" overlap for secure connections maintaining optimal flow alignment.
  2. Cut & crimp: Cut Downspout with tin snips; crimp upper piece to fit inside lower connection preserving the symmetrical flow characteristics.
  3. Secure joints: Apply Gutter Sealant to inside of connections; fasten with 1/4" Hex Screws or Pop Rivets on front and back for maximum holding powr.
  4. Position for performance: Orient B-Style (equal openings) to maintain optimal clearance from house; secure to structure with straps every 6-8 feet.
  5. Check alignment: Ensure smooth water flow path; verify no reverse slopes or binding and adequate clearance for the larger 3x4" profile.

Maintenance
  1. Inspect connections: Check for loose fasteners and leaking joints seasonally; retighten screws as needed to maintain secure installation.
  2. Clear blockages: Remove debris from Elbow bends during regular Gutter cleaning; the symmetrical design promotes easier debris passage in large systems.
  3. Monitor wear: Watch for corrosion at joints; reseal with Gutter Sealant when caulk cracks or shrinks to maintain weatherproof performance.

Compare Styles & Materials

3x4" B-Style Elbows vs Other Options

B-Style vs A-Style Elbows
  • B-Style Elbows: Symmetrical with equal openings, providing gentler turns and maximum flow efficiency while positioning large downspouts further from the house.
  • A-Style Elbows: Asymmetrical design with one wide and one narrow opening, creating more pronounced bends that direct water closer to walls but may restrict flow in high-volume applications.
3x4" vs 2x3" Downspout Systems
  • 3x4" System: 40% more water capacity, ideal for 6" Gutters, large roof areas, heavy rainfall regions, or commercial applications.
  • 2x3" System: Standard residential choice for 5" Gutters, typical home applications, and moderate water flow requirements.

Best Choice: Use 3x4" B-Style Elbows when you have large-capacity Gutter systems requiring maximum flow efficiency, need clearance from building structures, or want optimal drainage performance for heavy rainfall applications. Choose A-Style when space constraints require positioning large downspouts closer to walls despite potential flow restrictions.

Frequently Asked Questions

This is a general guide only and may not address your specific site conditions. If you are not experienced with this type of work, hire a qualified contractor.

What gauge should I choose for 3x4" B-Style Elbows?

Choose .019" gauge for standard residential applications and .024" gauge for commercial buildings, high-wind areas, or installations requiring maximum structural integrity. The heavier gauge provides added durability for demanding applications.

Why choose B-Style over A-Style for large Downspout systems?

B-Style Elbows provide superior water flow in large systems due to symmetrical design that reduces turbulence. They also position 3x4" Downspouts further from buildings, providing better clearance for the larger profile and easier maintenance access.

Can you customize 3x4 B-Style Elbows for complex installations?

Yes, our fabrication team can adjust Elbow angles, create multi-hit configurations, or modify offsets while maintaining the symmetrical flow advantages that make B-Style ideal for high-capacity applications.

How do B-Style Elbows handle high-volume water flow?

The symmetrical equal openings create gentler turns that maintain water velocity and reduce turbulence, making B-Style Elbows particularly effective for high-volume applications where flow efficiency is critical.

What's the proper installation spacing for 3x4 B-Style systems?

Install Downspout Straps every 6-8 feet for 3x4" Systems. The larger profile and improved clearance of B-Style Elbows may allow for slightly wider spacing while maintaining proper support and alignment.

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