Mueller Streamline LS-MS381430P Mini-split Line Set 30 Ft

Product Description

The MUELLER STREAMLINE LS-MS381430P is a contractor-pack mini-split line set designed for ductless HVAC installations. The set consists of a 30-foot, 3/8-inch suction line with factory-applied 1/2-inch insulation and a 30-foot, 1/4-inch liquid line, bundled together as a matched pair. Both copper lines arrive factory-flared on each end with flare nuts included, reducing field prep time and minimizing the risk of improper flare work. This line set is suited for HVAC technicians and refrigeration mechanics performing single-zone ductless system installations where consistent sizing and pre-fabricated components improve job-site efficiency and repeatability.

This line set is intended for single-zone ductless mini-split applications requiring 3/8-inch suction and 1/4-inch liquid connections. The contractor pack format is well suited for companies running repeat ductless installations or stocking line sets in bulk, providing consistent tubing dimensions and insulation thickness across jobs. Technicians should verify that the 30-foot run length is within the equipment manufacturer's maximum allowable line length before installation. This configuration covers typical residential and light-commercial single-zone ductless applications where run lengths fall within the 30-foot range.

Key Features

• 30-foot matched set: 3/8-inch suction line and 1/4-inch liquid line bundled together
• Factory-applied 1/2-inch insulation on the suction line reduces heat gain and protects refrigerant temperature
• Both lines factory-flared on each end with flare nuts included, minimizing field labor and flare variability
• Contractor pack format supports bulk stocking and repeat ductless installations
• Copper construction meets standard refrigerant line material requirements for ductless systems

Compatibility

Designed as an OEM-style line set for single-zone ductless mini-split systems requiring 3/8-inch suction and 1/4-inch liquid connections with a maximum run of 30 feet. Technicians must confirm equipment manufacturer specifications for connection size, maximum line length, and minimum line length before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician or refrigeration mechanic familiar with ductless system line set installation procedures. Power down and disconnect the mini-split system before connecting or modifying any refrigerant lines. Verify proper flare seating and flare nut torque per the equipment manufacturer's specifications before pressurizing the system. Refrigerant line sets must be installed and charged in compliance with applicable local mechanical codes and EPA Section 608 regulations.

Technical Specifications

• Suction Line Diameter: 3/8 inches
• Liquid Line Diameter: 1/4 inches
• Line Length: 30 feet
• Insulation Thickness: 1/2 inch (suction line)
• End Preparation: Factory-flared both ends, flare nuts included
• Material: Copper

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: LS-MS381430P