Fortress 4.5" 90° Inside Vertical Elbow – LCI122W (White) | Lineset Cover Fitting | MRCOOL Compatible

The Fortress 4.5" 90° Inside Vertical Elbow – LCI122W (84102) is designed to create a clean, professional inside-corner transition for vertically mounted HVAC lineset covers. Ideal for routing refrigerant lines, drain hoses, and control wiring along the interior angle of two exterior walls, this fitting helps maintain a smooth, low-profile installation while protecting essential HVAC components.

Part of the Fortress LD122 (4.5") Series, this elbow is fully compatible and interchangeable with MRCOOL® LineGuard, making it the perfect addition for new installations, expansions, or repairs on mini-split and heat pump systems.

Constructed from UV-stabilized, weather-resistant PVC, the LCI122W withstands harsh outdoor environments and maintains long-term durability. Its snap-together design ensures fast installation and secure fitment, while the paintable white finish allows for full customization to match siding, trim, or building surfaces.

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Key Features

• 90° Inside Vertical Elbow
  Creates a smooth inside-corner transition for vertically routed lineset covers.

• 4.5" LD122 Compatibility
  Sized for larger HVAC line sets or multi-line installations.

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

• Durable, UV-Stabilized PVC
  Built to withstand harsh outdoor conditions and long-term sun exposure.

• Snap-Together Installation
  Quick, secure assembly saves time for both contractors and DIY installers.

• Low-Profile, Pest-Resistant Design
  Fits tightly against surfaces to help prevent insects and birds from nesting.

• Paintable Finish
  Easily color-match to any home or commercial building.

• Made in the USA
  Engineered for durability and built for U.S. climate conditions.

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Specifications

• Brand: Fortress / Rectorseal

• Model / MPN: LCI122W (SKU 84102)

• Series: LD122 – 4.5"

• Part Type: 90° Inside Vertical Elbow

• Color: White

• Material: UV-Stabilized PVC

• Temperature Range: -4°F to 140°F

• Warranty: 12-Month Manufacturer Guarantee

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Applications

Perfect for:

• Mini-split systems

• Heat pumps

• Central A/C linesets

• MRCOOL DIY & Pro installations

• Inside-corner vertical routing

• Residential or commercial HVAC