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Overview

Protect your HVAC system with confidence using the MRCOOL LineGuard 4.5 Inch Line Set Cover Kit. Built for ductless mini split and air conditioning units, this durable 12-foot line set cover shields refrigerant and drain lines from harsh weather, sunlight, and environmental damage.

MRCOOL LineGuard 12 ft Line Set Outdoor Cover for Ductless Mini Split System, Protection from Wind, Rain and Extreme Temperatures, White

Model: 400918
Web Code: 19823104
Sold and shipped by | 3.5 seller rating (67 reviews)

Available for deliveryAvailable online only

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

Protect your HVAC system with confidence using the MRCOOL LineGuard 4.5 Inch Line Set Cover Kit. Built for ductless mini split and air conditioning units, this durable 12-foot line set cover shields refrigerant and drain lines from harsh weather, sunlight, and environmental damage. It helps maintain system efficiency, extend equipment life, and keep your installation looking clean and professional for years to come. Each LineGuard kit includes three 4-foot straight sections, one bend, a wall hole cover, and connecting pieces, providing everything needed for a seamless, airtight setup. The corrosion-resistant and UV-protected material stands up to years of exposure to rain, snow, and sun without cracking, fading, or weakening under extreme conditions. The lightweight, easy-to-assemble design makes installation fast and simple, perfect for homeowners completing DIY projects or HVAC professionals seeking a clean, finished appearance. Once installed, the LineGuard system prevents corrosion, moisture intrusion, and insulation damage that can reduce system efficiency and increase maintenance costs. Compatible with MRCOOL mini splits and most ductless air conditioning systems, this versatile line set cover provides the ideal blend of durability, performance, and appearance. With MRCOOL LineGuard, your home comfort system stays efficient, protected, and visually appealing, no matter the season or climate. 4.5-inch line set cover protects mini split air conditioner and heat pump line sets, keeping your system efficient and organized

12-foot line set cover kit includes (3) 4-foot straight sections, a bend, wall cover, and all connection pieces

UV-protected materials that resist corrosion defend refrigerant lines from harsh sunlight, rain, snow, and other outdoor elements

Prevents refrigerant loss, moisture buildup, and corrosion that can lead to costly damage or reduced system performance

Lightweight and easy to handle without professional tools, making it perfect for DIY homeowners

Sleek, modern design conceals line sets for a clean, professional look that complements your home’s exterior

Compatible with MRCOOL mini split systems and other similar ductless air conditioning units, offering universal protection

Color: White

Dimensions (L x W x H): 48 x 4.5 x 4.5 inches

Weight: 10 pounds

Manufacturer warranty: 1-year warranty

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Yukon
  • Northwest Territories
  • Nunavut
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Small appliances, Personal care, and Grooming appliances
Return/Exchange Period
30 days
Condition
Opened