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

MRCOOL

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SKU:
MLG450
$68.07 ex. Tax
UPC:
852895007318
$68.07 ex. Tax
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Description

Central Ducted Complete System

This complete Central Ducted system includes everything you need for a fully functional ductless mini-split installation. Featuring MRCOOL's industry-leading inverter technology, this system delivers year-round comfort with exceptional energy efficiency. Built-in Wi-Fi allows control from anywhere via the MRCOOL app, Amazon Alexa, or Google Assistant.

Technical Specifications

Model / SKUMLG450
BrandMRCOOL
SeriesCentral Ducted
RefrigerantSee product label
Electrical208-230V / 60Hz
Weight25.0 lbs (11.34 kg)
Product TypeComplete System
AHRI CertifiedYes — AHRI certification number available upon request

Product Tips

  • Professional Installation: While MRCOOL DIY products are designed for homeowner installation, always consult a licensed electrician for electrical connections.
  • Warranty Registration: Register your product at mrcool.com within 30 days of installation to activate the full warranty coverage.
  • Genuine Parts: Always use genuine MRCOOL replacement parts and accessories to maintain warranty coverage and optimal performance.
  • Annual Service: Schedule an annual inspection by a qualified HVAC technician to maintain peak efficiency and catch potential issues early.
  • Documentation: Keep your purchase receipt, installation date, and model/serial numbers in a safe place for warranty and service records.

Frequently Asked Questions

The Central Ducted requires a licensed HVAC technician for installation, including refrigerant handling and electrical connections.
Coverage depends on BTU capacity. Consult the product specifications for your specific model.
This unit uses R-410A refrigerant. Contact a licensed HVAC technician for refrigerant handling.
This unit operates in heating mode down to approximately 5°F (-15°C). For extreme cold climates, consider a Hyper Heat model or add a backup heat kit.
See the What's Included section above for a complete component list.
Most MRCOOL mini-split units require a dedicated 208-230V circuit with a double-pole breaker. The specific amperage depends on the BTU capacity. Always consult a licensed electrician for electrical installation.
MRCOOL mini-splits include a wireless remote control and built-in Wi-Fi for app control. The optional MRCOOL Smart Wi-Fi Mini Stat (MST05) provides wall-mounted thermostat-style control for individual zones.
MRCOOL provides a 7-year compressor warranty and 5-year parts warranty when the product is registered within 30 days of installation. Unregistered units receive a 5-year compressor / 1-year parts warranty.
Register at mrcool.com/warranty-registration within 30 days of installation. You will need the model number, serial number, installation date, and installer information.
Clean or replace air filters monthly during heavy use. Perform an annual coil cleaning and check the condensate drain line. Schedule a professional inspection every 1-2 years for optimal performance.

Compatible Accessories

Browse our full selection of MRCOOL accessories and replacement parts to complement this product. Contact us for compatibility questions.

Warranty Information

MRCOOL Limited Warranty (when registered within 30 days of installation):

  • Compressor: 7 years
  • Parts: 5 years
  • Labor: 1 year (through authorized service dealer)

Without registration: 5-year compressor / 1-year parts

Register at mrcool.com/warranty-registration. Keep your purchase receipt and installation records. Warranty is void if unit is installed improperly, modified, or used with non-approved refrigerants.

Need Help Choosing the Right Product?

Our HVAC specialists are ready to help you select the right system for your application, verify compatibility, and answer any technical questions.

Contact Us
Why Buy From HVAC PRO Sales? 15+ Years HVAC Experience | 500+ Systems Installed | Authorized MRCOOL Dealer

With over 15 years in the HVAC industry and 500+ MRCOOL systems personally installed, we bring hands-on expertise that translates directly into accurate product guidance. You get the right system the first time — backed by our price match guarantee and free expert support.

500+Systems Installed
15+Years Experience
10yrMRCOOL Warranty
100%Authorized Dealer

Extra Information

Brand:
MRCOOL
Series:
LineGuard
Mount Type:
Wall

Warranty Information

Base: N/A | Registered: N/A | Parts: base N/A, reg N/A | Compressor: base N/A, reg N/A | Heat Exchanger: base N/A, reg N/A | Remote: base N/A, reg N/A | Labor: base N/A, reg N/A