SKU: 98968188763

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

Sale price$59.40 Regular price$66.00
Save 10%

Pay in installments of $16.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Clumsyninja9
Fort Morgan, US
★★★★★ 4
Great product even if it dies in a little over a year.
I bought this in May 2023 and it's July 2024. I went on a trip for 6 days and when I came back, it wouldn't turn on. It could possibly be because I've used it every day and suddenly stopped. Either way, I'm disappointed in the longevity of this product. For the price I expected more, but nothing is made to last any more. That being said, I love the design and rechargeable aspect. The cap is awesome for storage and clean up is super easy. This little machine packs a punch as long as you have enough liquid. I've never had issues with lumps or performance in general. I will purchase this product again to see if it was just a fluke.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2024
D
Verified Purchase
Debsmusings
Massapequa, US
★★★★★ 3
Bigger/sturdier than expected = good and bad. Recharging cable is USB to USB-C. Need old style brick
I like the design in that it comes with a cover that shields the wand in my utensil drawer but its a bit bigger than expected. So its a plus that its sturdier but a minus that it takes up more space. The USB-C cable is USB to USB-C and not USB-C to USB-C so I had to go fishing for an old brick. Am hoping it doesn't need to charge often. The indicator shows its plugged in but not whether charged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
S
Verified Purchase
Sarahi De Anda
Dallas, US
★★★★★ 5
Good
If this works very well, it is better than the others I have bought.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
C
Verified Purchase
CK
Waukegan, US
★★★★★ 2
Ok
Got three years out of it. Better than some others. Docked two stars for lifespan. Docked another star for the paint finish which is not durable and marks easily. Should be more like $15 ?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
M
Verified Purchase
Marcellita
Whiting, US
★★★★★ 5
I am very impressed!
This little frother is perfect and my frappé coffee tastes as if I were sitting at one of the hundreds cute, outside cafés in Thessaloniki. It whips stiff coffee foam in just a few seconds, holds charge for a long time, and appears to be of superior quality. Variable speed control is great, as it prevents the coffee liquid to splash when starting the frothing process. Granted, I have only owned it for about 2 weeks, but I am totally impressed, and hope it'll keep making delicious frappés for me for a long time to come. So far, highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026

recommand products