Jmf Company dl04061250kx Line Set 1/4x3/8 50 Ft No Flare

Product Description

The JMF COMPANY dl04061250kx is a Type B double insulated refrigerant line set designed for split-system HVAC installations. It features a 1/4-inch liquid line and a 3/8-inch suction line, with 3/4-inch insulation thickness on the suction line to limit heat gain and maintain system efficiency. This 50-foot set ships without flare nuts, giving installers the flexibility to use preferred fittings for the application. HVAC technicians install this line set when connecting outdoor condensing units to indoor air handlers or evaporator coils.

This line set is suited for residential and light commercial split-system air conditioning and heat pump installations where a 1/4-inch liquid line and 3/8-inch suction line configuration is required. The 50-foot length accommodates standard single-story and two-story residential runs. The double insulated series construction helps reduce condensation and heat transfer along the suction line, which is important for maintaining refrigerant quality and system performance. No flare nuts are included, so installers supply their own to match local fitting and refrigerant type requirements.

Key Features

• 1/4-inch liquid line and 3/8-inch suction line — common sizing for residential mini-split and central split systems
• 50-foot total length for standard residential and light commercial runs
• 3/4-inch insulation thickness on suction line to minimize heat gain and condensation
• Double insulated series construction for improved thermal performance
• Ships without flare nuts — installer supplies fittings to match application and refrigerant type
• Type B designation indicates configuration and insulation grade

Compatibility

Designed as an OEM-style replacement or new-installation line set for residential and light commercial split-system air conditioners and heat pumps requiring a 1/4-inch liquid line and 3/8-inch suction line configuration.

Installation Notes

Line sets are installed by licensed HVAC technicians in accordance with local mechanical codes and manufacturer system requirements. Shut down and recover any refrigerant from existing systems before disconnecting old line sets. Flare connections must be made with proper flaring tools to ensure leak-free joints — no flare nuts are included with this set, so have appropriate hardware on hand before beginning. After installation, pressure-test and evacuate the line set before charging the system with refrigerant.