SKU: 98968188763

MRCOOL 3.5" Wall Sleeve and Cap Kit MCSLEEVE - Clean HVAC Line Set Installation

Sale price$59.40 Regular price$66.00
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

MRCOOL 3.5" Wall Sleeve and Cap Kit MCSLEEVE - Clean HVAC Line Set InstallationMRCOOL 3. 5" Wall Sleeve & Cap Kit (MCSLEEVE) Mini Split Line Set Wall Pass Through MRCOOL DIY Direct The MRCOOL 3. 5" Wall Sleeve and Cap Kit (MCSLEEVE) ensures a clean, professional finish when routing pre charged or traditional HVAC line sets through a wall. Designed for both new installations and retrofit projects, this genuine MRCOOL accessory protects your HVAC lines from wear, weather, and abrasion while maintaining a polished, finished

MRCOOL 3.5" Wall Sleeve & Cap Kit (MCSLEEVE) — Mini-Split Line Set Wall Pass-Through | MRCOOL DIY Direct

The MRCOOL 3.5" Wall Sleeve and Cap Kit (MCSLEEVE) ensures a clean, professional finish when routing pre-charged or traditional HVAC line sets through a wall. Designed for both new installations and retrofit projects, this genuine MRCOOL accessory protects your HVAC lines from wear, weather, and abrasion while maintaining a polished, finished appearance.

Built with durable, high-quality materials, the MCSLEEVE Wall Pass-Through Kit helps reduce long-term wear and improves the efficiency and reliability of your mini-split system installation. It’s easy to install and compatible with all MRCOOL systems — including DIY Series and Advantage Series units.

Key Features & Benefits

  • Professional Finish: Provides a clean, sealed wall pass-through for HVAC line sets, improving appearance and protection.
  • Durable Construction: Made from tough, long-lasting materials designed to resist wear and weather exposure.
  • Easy Installation: Installs quickly for both new MRCOOL mini-split setups and replacements.
  • Protects Pre-Charged Line Sets: Prevents kinking and abrasion of refrigerant lines and insulation.
  • Genuine MRCOOL Replacement Part: Engineered for perfect fit and compatibility with MRCOOL systems.

Technical Specifications

  • Product Type: Wall Sleeve & Cap Kit
  • Brand: MRCOOL
  • Model Number (MPN): MCSLEEVE
  • Diameter: 3.5"
  • Compatibility: MRCOOL DIY Series, Advantage Series, and other mini-split systems
  • Application: Wall pass-through for HVAC line sets and condensate hoses
  • Material: High-Density ABS Plastic
  • Includes: Wall Sleeve Tube & End Cap
  • Installation Type: Interior / Exterior
💡 Pro Tip: MRCOOL’s 3.5" wall sleeve is specifically sized to accommodate the Quick Connect pre-charged line sets used in MRCOOL DIY systems. The extra internal diameter allows the pre-insulated refrigerant lines to pass smoothly through the wall opening without compression or tearing. Always align your sleeve angle slightly downward toward the exterior for proper condensate drainage and professional finish.
Buy from MRCOOL DIY Direct — the USA’s trusted source for genuine MRCOOL parts and accessories. Enjoy nationwide delivery, fast shipping, and dedicated customer support for all your MRCOOL installation needs.

 

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: 98968188763

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Dario Escobar
Bozeman, US
★★★★★ 1
Sugerencia
Me llego pero el pedido tiene un fuerte mal olor a agua tipo de químico que aún lavandolo no se se va el mal olor . primera ves que me pasa esto
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Reviewed in the United States on March 7, 2026
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katherine
Boise, US
★★★★★ 4
Nice shirts for the price! But do not recommend for thick body types.
I bought 3 different ones. 2 Mediums and 1 2XL. The mediums fit correct and really nice! Would definitely recommend for the price! More like a exercise material, and sticks to your body shape... Sooo the 2Xl did not fit the person correct. Was so tight... And the strech is to stick to your body... So would not recommend for anyone a bit hefty or fit tbh. But the shirts are good materials and feel nice for a fresh day out or to use as gym clothes!!
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Reviewed in the United States on August 26, 2025
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Liliana Fernandez
Charlottesville, US
★★★★★ 5
Great Value heat gear material with high neck collar and loose fitting
Color: Black, Size: X-Large
My husband has been looking for mock neck shirts that are comparable to UA heat gear material but that are short sleeve and fit loose to wear under his work uniform. These seemed to have been a good soft quality option and the price is is great.
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Reviewed in the United States on December 4, 2025
M
Verified Purchase
My boots has not arrived yet,however I have been ordering these boots for the second time.They are comfortable for winter I work on delivery
Lake Worth, US
★★★★★ 5
Bought second one
Color: Navy, Size: Medium
I bought the black T-shirt about a month ago and really liked the quality the fabric is soft, the fit is great, and it holds up well after washing. So I decided to get the same one in dark blue.Very satisfied with the purchase
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Reviewed in the United States on December 9, 2025
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Donna
Alexandria, US
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
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Reviewed in the United States on May 22, 2026

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