SKU: 21710913501

RectorSeal Fortress 84105 4.5" White Line Set Cover Kit - 12 Ft Professional HVAC Wall Duct System

Sale price$161.19 Regular price$179.10
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

RectorSeal Fortress 84105 4.5" White Line Set Cover Kit - 12 Ft Professional HVAC Wall Duct SystemRectorSeal Fortress 84105 4. 5" White Line Set Cover Kit 12 Ft Professional HVAC Wall Duct System The RectorSeal Fortress 84105 Line Set Cover Kit is a premium HVAC line hide solution designed to protect and conceal exposed refrigerant lines, drain tubing, communication wiring, and electrical cables. Engineered for mini split systems, heat pumps, condensers, and conventional air conditioning installations, Fortress is trusted by HVAC professionals who

RectorSeal Fortress 84105 4.5" White Line Set Cover Kit - 12 Ft Professional HVAC Wall Duct System

The RectorSeal Fortress 84105 Line Set Cover Kit is a premium HVAC line hide solution designed to protect and conceal exposed refrigerant lines, drain tubing, communication wiring, and electrical cables. Engineered for mini split systems, heat pumps, condensers, and conventional air conditioning installations, Fortress is trusted by HVAC professionals who demand a cleaner appearance, superior durability, and long-lasting outdoor performance.

Unlike economy line set covers, Fortress features heavy-duty UV-stabilized, fire-resistant PVC construction and longer duct sections that reduce joints and create a more professional finished appearance. The clean white finish blends seamlessly with most residential and commercial exteriors while helping protect critical HVAC components from weather, UV exposure, and physical damage.

Why Choose Fortress?

  • Premium contractor-grade line set cover system
  • Complete 12-foot kit for most standard installations
  • Heavy-duty UV-stabilized PVC construction
  • Fire-resistant material designed for long-term outdoor use
  • Snap-together components simplify installation
  • Protects refrigerant lines, wiring, and drain tubing
  • Professional appearance enhances curb appeal
  • Ideal for residential and commercial HVAC systems
  • Made for mini splits, heat pumps, condensers, and central air systems

What's Included

Component Quantity
LD 4' Duct Sections 3
LJ Couplers 2
LW Wall Inlet 1
LEN End Fitting 1
LK 90° Flat Elbow 1

Technical Specifications

Specification Value
Brand RectorSeal
Series Fortress®
Manufacturer Part Number 84105
Product Type Line Set Cover Kit / Wall Duct System
Color White
Duct Size 4.5 Inches
Total Coverage 12 Feet
Material UV-Stabilized, Fire-Resistant PVC
Temperature Range -4°F to 140°F
Applications Mini Splits, Heat Pumps, Condensers, Multi-Zone Systems, Conventional HVAC

Professional Appearance. Professional Protection.

Exposed HVAC line sets can make even the highest-quality installation look unfinished. The Fortress 84105 kit helps create a clean, streamlined appearance while protecting refrigerant lines and wiring from outdoor exposure. Its larger 4.5-inch profile makes it an excellent choice for multi-zone systems, larger line sets, and installations requiring additional wiring or drain tubing.

When appearance, durability, and long-term performance matter, HVAC professionals choose Fortress. It's the premium line set cover system designed to finish the job right the first time.

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: 21710913501

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4.1 ★★★★★
Based on 12 reviews
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Product Reviews
K
Verified Purchase
Khaleesi
Lowell, US
★★★★★ 5
Great filter and easy installation
Style: BE-159 1-Pack, Style: BE-159 1-Pack
For my 2016 Hyundai Sonata Hybrid Limited. I cannot believe I paid so much more for a brand-name filter that does the same thing as this one. It is made of the same material as the dealer one I took out. Very easy to install, cant believe I paid for this to be done in the past with oil changes. Requires no tools and did not get dirty at all. No mechanical skills needed, especially if you run into trouble and can use YouTube. PROS - great quality, cannot tell that it is after-market - very professionally made, not irregularities seen - excellent fit in position, no adjustment needed - very easy to install, cannot believe I paid to have this done in the past - no mechanical skills needed to install - great price compared to what big name productions want for the same thing - cannot tell the difference in air quality between this and the dealer filter I took out - removes outside odor completely - did not require tools are getting dirty CONS - None
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
JimXeod
Dallas, US
★★★★★ 5
Fits perfect and works as designed. Flows like OEM and looks well made.
Style: BE-553B 1-Pack
This filter is very comparable to the stock filter. Fits the BMW G20 just like OEM. I would not say it is two times "heavier" as advertised on the box, but it is very comparable to stock. It's the same weight and similar construction. BMW has a very robust cabin filter. This will be my go to. I did purchase another aftermarket cabin filter that fit well, but was thin, flimsy and had a bad chemical odor. This one is fine and airflow is the same as OEM. I change them every year or so. I don't worry too much about longevity with cabin filters personally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
S
Verified Purchase
S. Phillips
Dallas, US
★★★★★ 4
Good quality but it was slightly longer than original and needed modification.
Style: BE-182 1-Pack
Bought this cabin filter for a 2023 Acura TLX. While the filter seems to be made of quality material, it was just a little too long (about a 1/16 of an inch, so I had to trim it to make it fit so the cover would fit snug. I was able to do that without compromising the filter itself. But this might be an issue for some people
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
K
Verified Purchase
Keith Granholm
Natrona Heights, US
★★★★★ 5
Fits my Chevy 2021 Bolt Premier perfectly.
Style: BE-966 1-Pack
Installation was a breeze, fir nicely and the air in teh car now smells fresh and clean. The old filter has developed a musty smell so this new one is great. Had it replaced in under 3 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
P
Verified Purchase
Punkizback
Lowell, US
★★★★★ 5
Fits perfectly for my 2017 VW Passat
Style: BE-373 1-Pack, Style: BE-373 1-Pack
Bought this for a fraction of the cost. An auto shop wanted to charge me $72.99 for a filter so I bought this Spearhead brand cabin filter and its the perfect size and its just as sturdy as the previous one the dealership had in the car. Not sure yet how the airflow is or if anything different as I have not driven in the car since it was replaced, but it appears to be a very high quality cabin filter for my car at a great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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