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Duct Adapter

Horizontal Application MrCool 14" Square to Round Adapter Kit (18.125" Supply & 18.125" Return)

Horizontal Application MrCool 14" Square to Round Adapter Kit (18.125" Supply & 18.125" Return)

Regular price $186.00
Regular price Sale price $186.00
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TypePackage Unit Duct

This item is in stock! Estimated Arrival: 4-6 Days After Order is Received.

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The MrCool 14" Square to Round Adapter Kit (14.5" Supply & 18.125" Return) is an essential component for connecting square ductwork to round ducts in your HVAC system. Designed to facilitate a smooth transition between different duct shapes, this adapter kit ensures efficient airflow and optimal performance for both supply and return ducts.

Key Features:

  • Dual Compatibility: Includes adapters for both 14.5" supply and 18.125" return ducts, providing a comprehensive solution for your HVAC system's ductwork needs.
  • Durable Construction: Made from high-quality, robust materials to ensure long-lasting durability and reliability, capable of withstanding the demands of regular use.
  • Easy Installation: The kit includes all necessary components and detailed instructions, allowing for a straightforward and quick installation process for both professionals and DIY enthusiasts.
  • Secure Connection: Ensures a tight and secure connection between square and round ducts, preventing air leaks and maintaining optimal airflow throughout your system.
  • Enhanced Airflow: Facilitates smooth airflow transition, reducing turbulence and improving the efficiency of your HVAC system.


  • Improved Efficiency: By ensuring a proper connection between square and round ducts, this adapter kit helps maintain the efficiency of your HVAC system, potentially lowering energy costs.
  • Versatile Application: Suitable for a variety of HVAC setups, providing flexibility in ductwork configurations and enabling easy retrofits or new installations.
  • Reliable Performance: Built to last, this adapter kit ensures consistent and reliable performance, contributing to the overall effectiveness of your heating and cooling system.
  • Professional Quality: Trusted by HVAC professionals for its ease of use and dependable results, making it a valuable addition to any HVAC toolkit.

Upgrade your HVAC system with the MrCool 14" Square to Round Adapter Kit (14.5" Supply & 18.125" Return) and experience the benefits of improved airflow, enhanced efficiency, and a secure ductwork connection. Whether you're retrofitting an existing system or installing new ductwork, this adapter kit provides the perfect solution for a seamless transition between square and round ducts.

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