
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.
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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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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.























