GAF Master Flow 4 in. Starting Collar Take off
GAF Master Flow 4 in. Starting Collar Take off
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GAF Master Flow 4 in. Starting Collar Take off

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Key item features

  • Efficient HVAC Duct Transition – Connects flat surfaces, plenums, or duct board to round pipes or insulated flexible ducts.
  • Durable Galvanized Steel Construction – Provides superior corrosion resistance, durability, and long-term reliability.
  • Snap-Together Design – Quick and easy installation without the need for additional tools or complex assembly.
  • Versatile Compatibility – Works with lined and unlined metal plenums for a wide range of HVAC applications.
  • 2-in. Space for Secure Fit – Designed for easy fastening of insulated flexible ductwork.
  • Seam Sealing Recommended – Use code-approved mastic, sealant, or duct tape (not included) to ensure airtight efficiency.
  • Optimized for Heating & Cooling Systems – Ideal for residential and commercial HVAC setups.
  • Lightweight Yet Sturdy – Offers professional-grade performance while being easy to handle and install.
  • Trusted HVAC Brand – Master Flow delivers high-quality duct fittings and ventilation solutions for superior airflow control.
Current price is $19.99
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