Quick answers to questions about ordering, compatibility, and installation.
The RectorSeal Fortress® 4.5" 90° Flat Elbow (LD122 – Gray) redirects mini split and HVAC lineset cover duct at a 90-degree angle along exterior walls. Designed for sharp directional changes around corners or obstacles, this fitting delivers a clean, professional finish for wall-mounted duct runs.
Built for use with LD122 (4.5") Fortress duct systems, this flat elbow is fully compatible with MRCOOL Line Guard kits and other 4.5" lineset cover components. It conceals and protects refrigerant lines, drain hoses, and communication wiring from UV exposure, weather damage, and impact.
Constructed from heavy-duty, UV-stabilized and fire-resistant PVC, Fortress fittings are tested for over 2,000 hours of UV resistance and perform in temperatures ranging from -4°F to 140°F. The gray finish complements residential and commercial buildings and can be painted to match exterior surfaces.
Ideal for MRCOOL DIY mini split systems, ductless heat pumps, and HVAC installations requiring clean 90-degree wall transitions.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Get help with ordering, compatibility, or installation questions.
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