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MRCOOL  |  SKU: DIY25-1438-O
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MRCOOL DIY 5th Gen 25 Ft. Pre-Charged Quick Connect Line Set

$264.00 USD

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Description

MRCOOL DIY 5th Gen 25 Ft. Pre-Charged Quick Connect Line Set

The MRCOOL DIY® 5th Gen 25 ft Pre-Charged Quick Connect Line Set (1/4″ x 3/8″) is a ready-to-use refrigerant connection kit designed to make installing your mini split HVAC system simple and efficient. It comes factory pre-charged with R‑454B refrigerant, eliminating the need for vacuuming or refrigerant handling during setup. The Quick Connect fittings allow secure, leak-resistant connections without specialized HVAC tools, making it ideal for DIY installation.

Specifically sized for MRCOOL 5th Gen 6K, 9K, and 12K BTU indoor mini split air handlers, this 25 ft line set provides the perfect length for installations where the indoor and outdoor units are relatively close together. Its 1/4″ liquid line and 3/8″ suction line configuration is tailored to these systems’ refrigerant flow requirements for reliable performance.

The line set is built with durable, weather-resistant insulation and robust tubing that withstands outdoor exposure, ensuring reliable year-round operation. Its compact length makes it ideal for short-distance installs, such as back-to-back wall setups or interior rooms, without excess slack.

This accessory is a practical choice for homeowners upgrading, replacing, or installing a compatible MRCOOL mini split setup, offering a DIY-friendly solution that simplifies HVAC installation without compromising performance or reliability.

Please note: This system is designed for DIY installation and includes a pre-charged Quick Connect line set for easy setup without HVAC tools or certification.

Features

  • Pre-Charged with R-454B Refrigerant – Eliminates the need for handling refrigerant or vacuuming the lines.
  • 25 Ft. Length – Provides flexibility in installation for various room layouts and system placements.
  • Durable Copper Tubing – Built for long-lasting performance with superior heat transfer capabilities.
  • Quick Connect Fittings – Ensure secure, leak-free connections that are DIY-friendly.
  • Perfect Match Compatibility – Designed for MRCOOL DIY 5th Gen 6K, 9K, and 12K indoor mini split air handlers.

Specifications

Series

5th Gen DIY Line Set - R-454B
Compatible Air Handlers

6K, 9K, & 12K 5th Gen DIY
Line Set Length

25 ft
Lineset Fitting Type

Quick-Connection
Gross Dimensions

32.09" D x 4.92" H x 32.09" W

Color

White

Color Family

Bronze/Copper Metallic

Refrigerant Type

R-454B

Refrigerant Volume (Oz)

2.12

Liquid Line Size

1/4

Suction Line Size

3/8

Registered Warranty

N/A
Has Batteries No

Contains Electronics

No

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Restricted States

GU;PR;VI

Net Weight (Lbs)

10.4

Gross Weight (Lbs)

14.6

Applications

  • Bedrooms – Allows flexible unit placement for optimal comfort.

  • Home Offices – Supports efficient installations in small workspaces.

  • Apartments & Condos – Fits perfectly for compact living areas with smaller air handlers.

  • Workshops or Studios – Easy to extend climate control into secondary spaces.

What’s Included

  • MRCOOL DIY 5th Gen 25 Ft. Pre-Charged Quick Connect Line Set, 1/4" x 3/8"

  • User Manual

Frequently-Asked Questions

Do I need HVAC tools to install this line set?
No, the pre-charged Quick Connect design allows for DIY installation without special tools.

Is this line set compatible with all MRCOOL DIY systems?
No, it is specifically designed for the MRCOOL DIY 5th Gen 6K, 9K, and 12K indoor mini split air handlers.

Can I connect multiple line sets together?
Yes, MRCOOL offers coupler kits that allow line sets to be extended when necessary.

What refrigerant is this line set pre-charged with?
It comes pre-charged with eco-friendly R-454B refrigerant.

Payment & Security

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