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

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

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.

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.

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

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