Condition - Like new

Streamline your ductwork with the Builder's Best 110137 Duct Coupling 4", Aluminum, set of 20. Designed for efficient airflow connections, this durable coupling ensures a secure fit in HVAC systems.

💡 Why You’ll Love It:

✅ Strong Aluminum Construction: Resists corrosion and provides long-lasting performance
✅ 4" Diameter Fit: Compatible with standard duct sizes for seamless integration
✅ Set of 20: Ideal for large-scale installations or replacements

📦 Product Details:
• Brand: Builder's Best
• Material: Aluminum
• Size: 4"
• Quantity: 20 pieces
• Use: HVAC ductwork connections

🔗 Perfect for: HVAC technicians, contractors, and professionals working on ventilation systems.

SKU - 820
483113 0.9