Fortress Lineset Cover 4.5" Adjustable 45–90° Flat Elbow (LD122) – Multiple Colors Available

The Fortress 4.5" Adjustable Flat Elbow (LD122) is a premium solution for navigating HVAC linesets around exterior wall obstacles, allowing for a smooth directional change between 45° and 90° on a flat surface. Whether you're managing a residential mini split installation or a commercial HVAC project, this fitting helps deliver a clean, finished look while providing essential protection for refrigerant lines, drain hoses, and wiring.

Crafted from durable, UV-stabilized, and fire-resistant PVC, this elbow fitting is tested to withstand over 2,000 hours of sun exposure and a wide temperature range of -4°F to 140°F. It’s designed to complement or match any building exterior and is paintable with a brush, roller, or spray for full customization.

The LD122 series (4.5" size) is ideal for large-capacity HVAC systems or installations with multiple lines, and it integrates seamlessly with the complete Fortress Lineset Cover System.

🔹 Key Features:

• Adjustable Flat Elbow (45°–90°): Easily redirects lineset routing around corners or obstacles on flat walls.

• 4.5" Duct Compatibility (LD122): Suitable for larger HVAC lines and multi-line setups.

• Durable & Weather-Resistant PVC: UV stabilized and fire-rated for reliable outdoor use.

• Wide Temperature Tolerance: Performs in temperatures from -4°F to 140°F.

• Paintable Surface: Match or complement building exteriors with custom colors.

• Color Options:

  • White

  • Ivory

  • Brown

  • Gray

• Warranty: 3 Years

• Application: Residential or commercial HVAC systems including mini splits and central A/C.

At MRCOOL DIY Direct, we’re proud to be the USA’s most trusted MRCOOL® dealer, offering the full line of MRCOOL® equipment, parts, and accessories—including the innovative DIY® systems that revolutionized home HVAC. But we don’t stop there. We also carry parts and equipment for all major HVAC brands, plus a wide selection of tools, installation kits, and accessories for everyone from DIY homeowners to licensed contractors.

Whether you're upgrading your own home, servicing a client, or managing large-scale installations, MRCOOL DIY Direct is your one-stop shop for reliable products, expert support, and unbeatable value.