Fortress 4.5" Tee – White (LT122W / 84115) | Lineset Cover Fitting | MRCOOL Compatible

The Fortress LT122W Tee (84115) is a premium 4.5" lineset cover fitting designed to create a clean, professional branch connection within your HVAC lineset cover system. This Tee allows refrigerant lines, drain tubing, and control wiring to split or merge in multiple directions—perfect for multi-zone mini-split systems, heat pumps, and large-capacity HVAC installations.

Part of the Fortress LD122 Series, this Tee is fully compatible and interchangeable with MRCOOL® LineGuard, making it an ideal choice for expanding or modifying existing installations. Whether you're working on a residential project or a commercial HVAC layout, the LT122W delivers secure, weather-resistant performance.

Constructed from UV-stabilized, fire-resistant PVC, this fitting withstands harsh outdoor environments and maintains long-term durability. Its smooth white finish can be painted to match any building exterior, ensuring a clean and seamless appearance.

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Key Features

• 4.5" LD122 Tee Fitting
  Provides a clean branch connection for multiple lineset paths.

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

• Heavy-Duty PVC Construction
  UV-stabilized and fire-resistant for long-term outdoor durability.

• Snap-Together Installation
  Makes assembly quick and secure, saving install time on the jobsite.

• Pest-Resistant, Tight-Fit Design
  Helps prevent birds, insects, and debris from entering behind the cover.

• Paintable Surface
  Easily matches siding, trim, or any building finish.

• Perfect for Multi-Zone HVAC Systems
  Ideal for installations with branching or split line paths.

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Specifications

• Brand: Rectorseal

• Series: Fortress LD122 (4.5")

• Model / MPN: 84115 / LT122W

• Color: White

• Material: UV-stabilized PVC

• Part Type: Tee – Lineset Cover Fitting

• Warranty: 1 Year

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Applications

Great for:

• Multi-zone mini-split systems

• Heat pump installations

• Central A/C systems

• Residential & commercial HVAC

• MRCOOL DIY & MRCOOL Pro installations

• Any project requiring a clean 3-way lineset branch