Linesets LINE004K0250L Single Line Set 1/4 in Od 25 Ft

Product Description

The LINESETS LINE004K0250L is a pre-assembled single refrigerant line set designed for HVAC installation. It features a 1/4 inch OD copper tube with 1/2 inch wall thickness K-Flex Titan insulation applied over the exterior. K-Flex Titan is a co-extruded, jacketed composite material bonded to K-Flex NBR/PVC tubular insulation, providing flexibility along with resistance to abrasion and weather exposure. The 25-foot length ships fully assembled and ready to install, reducing field labor time on new mini-split or ductless system installations. HVAC technicians and refrigeration mechanics are the primary installers of this component.

This line set is suited for residential and light commercial HVAC applications where a 1/4 inch OD copper refrigerant line is specified. Typical use cases include ductless mini-split installations and other refrigerant circuit runs where a single line is required. The black polymeric jacket resists UV degradation and physical abrasion, making it appropriate for both interior runs and exposed exterior routing. The 25-foot roll covers standard wall-penetration distances common in single-zone residential installations.

Key Features

• Pre-assembled and ready to install — no field insulation required
• 1/4 inch OD copper tube for refrigerant service
• 1/2 inch K-Flex Titan insulation wall thickness
• Co-extruded NBR/PVC tubular insulation with polymeric outer jacket
• Black jacket provides UV, abrasion, and weather resistance
• 25-foot length suits typical single-zone residential runs

Compatibility

Designed as an OEM-style replacement or new-installation line set for HVAC systems specifying a 1/4 inch OD single copper refrigerant line with pre-applied insulation.

Installation Notes

Installation should be performed by a licensed HVAC technician or refrigeration mechanic holding an EPA 608 certification, as this component is part of a refrigerant circuit. Isolate and recover any refrigerant from the system before disconnecting existing line sets. Support the line set at appropriate intervals per local mechanical code requirements and avoid kinking the copper during routing. Inspect the jacket for damage after pulling through wall penetrations before making flare or braze connections.

Technical Specifications

• Tube Size (OD): 1/4 inch
• Insulation Wall Thickness: 1/2 inch
• Length: 25 feet
• Line Type: Single
• Insulation Material: K-Flex NBR/PVC with polymeric composite jacket
• Insulation Color: Black
• UPC: 68576845742

Standard Information

• Brand: LINESETS
• Manufacturer Part Number: LINE004K0250L