Fortress 4.5" 45° Outside Vertical Elbow – White (84101) | Lineset Cover Fitting | MRCOOL Compatible

The Fortress 4.5" 45° Outside Vertical Elbow (84101) is designed to create a clean, professional 45-degree directional change for HVAC lineset covers installed vertically on exterior walls. This fitting allows refrigerant lines, drain hoses, and control wires to transition smoothly around obstacles while maintaining a neat, low-profile appearance.

Part of the Fortress LD122 Series, this elbow is fully compatible and interchangeable with MRCOOL® LineGuard, making it ideal for extending, modifying, or upgrading existing installations. Its tight-fit design helps prevent nesting by insects and birds, while protecting linesets from weather, UV exposure, and physical damage.

Manufactured from UV-stabilized, weather-resistant polymers, the 84101 elbow is built for long-term outdoor durability in temperatures ranging from -4°F to 140°F. The white finish is also paintable, allowing full customization to match siding, trim, stucco, or commercial exteriors.

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Key Features

• 45° Outside Vertical Direction Change
  Routes HVAC lines cleanly around exterior wall obstacles.

• 4.5" LD122 Compatibility
  Sized for larger capacity refrigerant lines and multi-line systems.

• MRCOOL LineGuard Compatible
  Fully interchangeable with MRCOOL®, Daikin, GREE, and most major lineset cover systems.

• Durable & UV-Stabilized Construction
  Weather-resistant polymers ensure long-lasting outdoor performance.

• Snap-Together Installation
  Speeds up install time and provides secure, reliable fastening.

• Pest-Resistant Design
  Low-profile shape helps prevent birds and insects from nesting behind the cover.

• Paintable Surface
  Easily matches any exterior finish for a seamless look.

• Part of the Fortress LD122 System
  Works with straight duct, elbows, tees, end fittings, and wall inlets.

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Specifications

• Brand: Rectorseal / Fortress

• Model / MPN: 84101

• Series: LD122 – 4.5"

• Part Type: 45° Outside Vertical Elbow

• Color: White

• Material: UV-Stabilized PVC / Polymers

• Size: 4½"

• Width: 3½"

• Height: 3½"

• Length: 5¼"

• Temperature Rating: -4°F to 140°F

• Warranty: 1 Year

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Applications

Ideal for:

• Mini-split systems

• Heat pumps

• Central A/C installations

• MRCOOL DIY & Pro systems

• Residential or commercial HVAC projects

• Routing lines vertically with 45° directional change