Parker tg.lsin385812030-fn Preinsulated Copper Line Set 30 Ft

Product Description

The PARKER tg.lsin385812030-fn is a TwinGel preinsulated copper line set designed for refrigerant line connections in air conditioning and heat pump systems. The set consists of two ASTM B280 copper tubes measuring 3/8 inch and 5/8 inch in diameter, each covered with 1/2 inch UL Verified polyethylene insulation rated for a 3-year anti-UV service life. The roll ships at 30 feet in length and is marked by the foot along its entire run, allowing technicians to measure charge-critical line lengths accurately and minimize waste on the job. Licensed HVAC technicians and refrigeration mechanics are the primary installers of this product.

This line set is suited for residential and light commercial air conditioning applications including unitary split systems, ductless mini-split systems, variable refrigerant flow (VRF) systems, and heat pumps. The insulation is paintable, making it appropriate for exposed exterior installations where aesthetics matter. Both the liquid line and suction line are machinery attached at the factory, eliminating the need to sleeve or tape the lines together on site. Flare nuts are included for field connection to equipment service ports.

Key Features

• ASTM B280 copper tubing construction for refrigerant-grade service
• UL Certified preinsulated assembly with UL Verified 1/2 inch anti-UV polyethylene insulation
• Insulation R-Value of 4.0 for thermal efficiency
• Compatible with high-pressure refrigerants including R-410A
• Foot markings along the full 30-foot roll for accurate charge calculations and waste reduction
• Paintable insulation jacket for exposed or finished installations
• Flare nuts included for direct field connection

Compatibility

Suitable for all air conditioning applications including unitary systems, ductless mini-splits, VRF systems, and heat pumps. Compatible with high-pressure refrigerants such as R-410A.

Installation Notes

Installation should be performed by a licensed HVAC technician following applicable mechanical codes and refrigerant handling regulations. Power down and de-energize the equipment at the disconnect before making line connections. Use proper flare tooling to prepare tube ends before attaching the included flare nuts, and leak-test all connections after system commissioning. Do not kink or crush the copper tubing during routing, as deformation will restrict refrigerant flow.

Technical Specifications

• Tubing Standard: ASTM B280
• Line Sizes: 3/8 inch and 5/8 inch
• Insulation Thickness: 1/2 inch
• Insulation Type: Polyethylene, anti-UV
• Insulation R-Value: 4.0
• Length: 30 feet
• Certifications: UL Certified, UL Verified insulation
• Refrigerant Compatibility: High-pressure refrigerants including R-410A
• Insulation Finish: Paintable
• Included Accessories: Flare nuts

Standard Information

• Brand: PARKER
• Manufacturer Part Number: tg.lsin385812030-fn