Fortress 4.5" Wall Inlet – LW122W (White) | Lineset Cover Entry Fitting | MRCOOL Compatible

The Fortress 4.5" Wall Inlet (LW122W) is designed to create a clean, professional finish where HVAC linesets enter the exterior wall of a home or building. This inlet hides penetration holes and seals the transition point between your indoor equipment and outdoor lineset cover system.

Part of the Fortress 4.5" (LD122 Series), this wall inlet is fully compatible with MRCOOL LineGuard, making it the perfect choice for mini split installations, heat pump systems, central air conditioners, and multi-line setups.

Manufactured in the USA from durable, UV-stabilized PVC, the LW122W provides long-lasting protection against weather, pests, and environmental damage. The smooth surface is paintable and can be customized to match siding, trim, or interior walls—ensuring a seamless, high-quality look for any project.

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Key Features

• Clean, Professional Wall Entry Point
  Covers and seals holes where refrigerant lines and wiring penetrate exterior walls.

• 4.5" LD122 Compatibility
  Designed for larger HVAC linesets and multi-line installations.

• Durable, UV-Stabilized PVC
  Engineered for outdoor use in all climates.

• Paintable Finish
  Easily color-match to any building exterior.

• Made in the USA
  High-quality construction built for American climate conditions.

• Compatible With Fortress & MRCOOL LineGuard Systems
  Mix-and-match friendly for expansions or replacements.

• Affordable, Long-Lasting Performance
  A cost-effective solution between lightweight and high-end cover systems.

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Specifications

• Brand: Fortress

• Model: LW122W

• Size: 4.5" (LD122 series)

• Material: UV-stabilized PVC

• Color: White

• Application: Wall penetration cover for HVAC linesets

• Warranty: 12-month manufacturer guarantee

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Applications

Ideal for:

• Mini-split installations

• Heat pumps

• Central A/C systems

• Commercial & residential HVAC

• Multi-line or large-diameter lineset setups

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Why Installers Choose Fortress LW122W

✔ Provides a clean, professional look
✔ Simple installation with any Fortress/MRCOOL lineset cover system
✔ Prevents exposure of refrigerant lines & wiring
✔ Reliable performance in hot, cold, or humid climates
✔ Strong price point without sacrificing durability