
MRCOOL 3.5" Wall Sleeve and Cap Kit MCSLEEVE - Clean HVAC Line Set Installation
Original: $66.00
-70%$66.00
$19.80The Story
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

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
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















