100 1/4LQ X 3/8SCN 1/2 LINESET

Product description

LS143812100 Refrigerant Line Set
This is a 100-foot insulated copper tubing assembly used to connect a ductless mini-split or heat pump indoor unit to its outdoor condenser.

Key specifications

• Type: HVAC mini-split line set
• Length: 100 ft
• Liquid line: 1/4" copper tubing
• Suction line: 3/8" copper tubing
• Insulation: ~1/2" closed-cell foam insulation
• Connections: Flared ends with nuts (typical mini-split style)
• Material: Annealed copper with UV-resistant insulation jacket

This configuration (1/4" × 3/8") is standard for many small-to-mid capacity ductless systems.

What it does

It carries refrigerant between:

• Outdoor condenser (compressor unit)
• Indoor evaporator (wall cassette or air handler)

Functionally:

• 1/4" liquid line → high-pressure refrigerant to indoor unit
• 3/8" suction line → low-pressure vapor returning to outdoor unit