MRCOOL LineGuard 4.5-Inch 16-Piece Complete Line Set Cover Kit for Ductless Mini-Split or Central System (MLG450)

 Product Description 

MRCOOL® LineGuard® Line Set Cover Kit – 12 Ft Mini Split Line Hide System – White, Gray & Tan – MLG450 / MLG450-G-01 / MLG450-T-01

Product Overview

The MRCOOL® LineGuard® Line Set Cover Kit is the perfect solution for protecting and concealing exposed refrigerant lines, communication wiring, and drain tubing on ductless mini split installations. Designed specifically for MRCOOL® mini split systems and compatible with most ductless HVAC brands, this durable exterior line hide system creates a cleaner, more professional-looking installation while helping protect line sets from weather, UV exposure, and outdoor damage.

This complete 12-foot line set cover kit includes everything needed to organize and protect exposed HVAC tubing and wiring on the outside of your home or building. Whether you’re installing a new mini split system or upgrading the appearance of an existing installation, the MRCOOL® LineGuard® system delivers a sleek finished look while helping extend the life of your HVAC components.

Unlike cheap brittle line hide kits, the MRCOOL® LineGuard® system is lightweight, flexible, easy to cut, and simple to install. The modular design allows installers and homeowners to route mini split line sets neatly around walls, corners, and exterior surfaces while maintaining a clean professional appearance.

The kit includes three 4-foot straight duct sections for a total of 12 feet of coverage, along with a flat 90-degree elbow, wall inlet cover, couplers, end fitting, lock clips, and strap ties for complete installation flexibility.

Available in multiple color options to better match your home exterior:

• White — Model: MLG450
• Gray — Model: MLG450-G-01
• Tan — Model: MLG450-T-01

Perfect for mini split systems installed on homes, garages, workshops, additions, apartments, tiny homes, offices, and commercial spaces.

 

Why Use A Mini Split Line Set Cover?

Mini split line sets exposed to sunlight, rain, snow, debris, and outdoor elements can become damaged over time. A quality line hide system helps:

• Protect refrigerant lines from UV damage
• Improve exterior appearance
• Reduce wear on insulation
• Organize exposed wiring and tubing
• Create a cleaner professional installation
• Help extend system longevity
• Improve curb appeal
• Reduce maintenance issues over time

The MRCOOL® LineGuard® system keeps your installation protected while giving your mini split system a much cleaner finished appearance.

 

Available Color Options

White

• Model Number: MLG450
• Traditional clean finish for most homes

Gray

• Model Number: MLG450-G-01
• Popular modern neutral option for siding, metal buildings, and darker exteriors

Tan

• Model Number: MLG450-T-01
• Great for beige, cream, tan, and earth-tone exterior finishes

 

What’s Included In The Kit

This 16-piece complete line hide kit includes:

Straight Duct Sections

• (3) 4-foot straight duct sections
• Total coverage: 12 feet

Fittings & Accessories

• (1) 90° flat elbow
• (1) Wall hole cover / wall inlet
• (2) Couplers
• (1) End fitting
• (4) Lock clips
• (4) Strap ties

All components are designed to work together for fast, clean installation and professional results.

 

Key Features & Benefits

Protects Refrigerant Lines

Helps shield line sets, wiring, and insulation from outdoor weather exposure and UV damage.

Improves Exterior Appearance

Conceals exposed mini split tubing and wiring for a cleaner, more professional installation.

DIY-Friendly Installation

Lightweight and easy to install for both homeowners and professional installers.

Flexible Modular Design

Allows easy routing around corners, walls, and exterior surfaces.

Universal Mini Split Compatibility

Designed for MRCOOL® systems but compatible with many ductless mini split installations.

Multiple Color Choices

Available in white, gray, and tan to better match your home or building exterior.

Durable Outdoor Construction

Designed for long-term exterior HVAC applications.

 

Ideal Applications

Perfect for:

• Mini split installations
• Ductless heat pump systems
• Garage mini splits
• Workshop HVAC systems
• Home additions
• Apartments
• Tiny homes
• ADUs
• Finished basements
• Commercial mini split systems
• Airbnb properties
• Office spaces

 

Product Specifications

General Information

• Brand: MRCOOL®
• Series: LineGuard®
• Equipment Type: Line Set Cover / Line Hide Kit
• Unit Type: HVAC Accessory

 

Model Numbers

• White: MLG450
• Gray: MLG450-G-01
• Tan: MLG450-T-01

 

Coverage Length

• Total Coverage: 12 Feet

 

Included Components

• (3) Straight duct sections
• (1) Flat 90° elbow
• (1) Wall inlet cover
• (2) Couplers
• (1) End fitting
• (4) Lock clips
• (4) Strap ties

 

Frequently Asked Questions about MRCOOL® LineGuard® Line Set Cover Kit – 12 Ft Mini Split Line Hide System – White, Gray & Tan – MLG450 / MLG450-G-01 / MLG450-T-01

What does the MRCOOL® LineGuard® kit do?

The LineGuard® kit conceals and protects exposed refrigerant lines, communication wiring, and drain tubing on mini split installations.

 

How much coverage does this kit provide?

The kit includes three 4-foot straight duct sections for a total of 12 feet of coverage.

 

Is this compatible with other mini split brands?

Yes. While designed for MRCOOL® systems, the LineGuard® kit can also work with many other ductless mini split systems.

 

Can homeowners install this themselves?

Yes. The kit is designed for easy DIY installation using basic hand tools.

 

Does the kit include fittings and elbows?

Yes. The kit includes a 90° elbow, wall inlet cover, couplers, end fitting, lock clips, and strap ties.

 

What colors are available?

This kit is available in:

• White (MLG450)
• Gray (MLG450-G-01)
• Tan (MLG450-T-01)

 

Why Buy From MRCOOL Direct?

MRCOOL Direct is one of America’s most trusted authorized MRCOOL dealers, offering genuine factory-fresh MRCOOL® equipment and accessories backed by real support.

When you buy from MRCOOL Direct, you get:

• Genuine MRCOOL® products
• Warranty-safe authorized dealer protection
• Fast nationwide shipping
• Expert mini split accessory support
• Friendly customer service
• Help with sizing and compatibility
• No unauthorized marketplace sellers

Need help selecting the right line set accessories or installation parts?

Call MRCOOL Direct:

615-553-8118

Friendly HVAC support from real people.

BUY DIRECT AND SAVE! MRCOOL DIRECT

Instruction Manual