MRCOOL 50FT 1/4" x 3/8" Flared Line Set Kit for 9K & 12K Mini Splits (MC50-1438)

Ensure a secure and professional connection between your indoor air handler and outdoor condenser with the MRCOOL 50FT 1/4" x 3/8" Flared Line Set Kit (MC50-1438). Designed for 9K and 12K mini split systems, this extended-length line set is ideal for installations requiring longer line runs in residential and light commercial applications.

System Compatibility

This line set is compatible with:

• MRCOOL Olympus Series 9K & 12K systems
• MRCOOL Advantage Series 9K & 12K systems
• Any mini split system requiring a 1/4" liquid line and 3/8" suction line

Compatible air handler types:

• Wall-mounted units
• Ceiling cassette units

Always verify line size and maximum line length specifications in your system manual before ordering.

Key Features

Extended 50-Foot Length
Provides additional flexibility for longer-distance installations such as multi-story homes, rental properties, garages, additions, workshops, and light commercial spaces.

Correct Line Size for 9K & 12K Systems
Configured with 1/4" liquid and 3/8" suction lines, suitable for most 9K and 12K mini split applications.

Flared Connections
Factory-flared ends allow for secure, leak-resistant connections when properly torqued to manufacturer specifications.

Durable Copper Construction
Built from high-quality copper tubing designed for long-term HVAC performance and reliability.

Not Pre-Charged
This line set is not pre-charged and must be properly evacuated and charged by a licensed HVAC professional prior to system startup.

Specifications

• Length: 50 Feet
• Line Size: 1/4" Liquid x 3/8" Suction
• Connection Type: Flared
• Compatible BTU Sizes: 9K and 12K
• Pre-Charged: No

Installation Notes

• Confirm required line size and maximum allowable line length with your condenser.
• Torque flare fittings to manufacturer specifications.
• Properly support and protect the line set along its entire run.
• System must be vacuumed and professionally charged before operation.
• Longer runs may require additional refrigerant depending on manufacturer guidelines.

This 50FT 1/4" x 3/8" flared line set provides a dependable solution for extended-run 9K and 12K mini split installations, delivering flexibility without sacrificing performance.