Fortress 4.5" Coupler – LJ122W (White) | Lineset Cover Connector | MRCOOL Compatible
SKU: 29312841760

Fortress 4.5" Coupler – LJ122W (White) | Lineset Cover Connector | MRCOOL Compatible

Sale price$19.80 Regular price$22.00
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Description

Fortress 4.5" Coupler – LJ122W (White) | Lineset Cover Connector | MRCOOL CompatibleThe Fortress 4. 5" Coupler LJ122W is designed to securely join two sections of 4. 5" lineset cover ducting, creating a clean, continuous run for HVAC refrigerant lines, drain hoses, and control wiring. This fitting is an essential component for any extended installation where additional duct length is needed. Part of the Fortress LD122 Series, this coupler is fully compatible and interchangeable with MRCOOL LineGuard, making it a reliable choice for

The Fortress 4.5" Coupler – LJ122W is designed to securely join two sections of 4.5" lineset cover ducting, creating a clean, continuous run for HVAC refrigerant lines, drain hoses, and control wiring. This fitting is an essential component for any extended installation where additional duct length is needed.

Part of the Fortress LD122 Series, this coupler is fully compatible and interchangeable with MRCOOL® LineGuard, making it a reliable choice for both new installs and upgrades on mini-splits, heat pumps, and central HVAC systems.

Constructed in the USA from UV-stabilized, weather-resistant PVC, the LJ122W offers long-term durability against sun exposure and harsh outdoor conditions. Its snap-together design allows for fast installation and provides a tight, secure fit to help prevent pest intrusion. The white finish is paintable, allowing for a seamless match to siding, trim, stucco, or commercial surfaces.


Key Features

  • 4.5" LD122 Coupler / Connector
    Connects two straight duct sections for longer lineset runs.

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

  • Durable, Weather-Resistant PVC
    UV-stabilized to withstand sun, rain, and extreme temperatures.

  • Snap-Together Design
    Fast installation with a secure, tight fit.

  • Pest-Resistant Surface Fit
    Helps prevent insects or debris from entering duct channels.

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

  • Made in the USA
    Quality construction built for American climate conditions.


Specifications

  • Brand: Fortress / Rectorseal

  • Model / MPN: LJ122W (SKU 84110)

  • Series: LD122 – 4.5"

  • Type: Lineset Cover Coupler / Connector

  • Color: White

  • Material: UV-Stabilized PVC

  • Warranty: 12-Month Manufacturer Guarantee


Applications

Perfect for:

  • Extending lineset cover runs

  • Mini-split installations

  • Heat pump systems

  • Central A/C systems

  • Residential & commercial HVAC

  • MRCOOL DIY & Pro systems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29312841760

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