Mueller Industries MUE-41020250B3B6 Mini Split Line Set

Product Description

The MUELLER INDUSTRIES MUE-41020250B3B6 is a pre-insulated refrigerant line set engineered for mini split system installations. It pairs a 1/4 inch liquid line with a 5/8 inch suction line across a 25-foot run length, giving HVAC technicians a ready-to-install solution that eliminates field fabrication of individual line sets. The assembly is designed to handle the refrigerant pressures and temperature differentials common to ductless mini split systems, making it a practical choice for residential and light commercial applications where a matched line set length is needed straight from the box.

This line set is suited for ductless mini split installations in residential homes, condominiums, and small commercial spaces. The 25-foot length covers typical wall-penetration runs from an indoor air handler to an outdoor condensing unit. HVAC technicians working on single-zone and multi-zone ductless systems will find the 1/4 inch liquid line and 5/8 inch suction line sizing consistent with the common port configurations found on many mini split units in this class.

Key Features

• 1/4 inch liquid line and 5/8 inch suction line configuration for mini split compatibility
• 25-foot pre-measured length reduces field cutting and fitting time
• Designed for ductless mini split refrigerant circuit service
• Pre-paired line set simplifies ordering and staging on the job site

Compatibility

Designed as an OEM-style replacement and new-installation line set for ductless mini split systems requiring a 1/4 inch liquid line and 5/8 inch suction line connection.

Installation Notes

Installation should be performed by an EPA Section 608 certified HVAC technician. Before connecting the line set, ensure the mini split system is fully recovered and depressurized according to the equipment manufacturer's service procedures. Route and support the line set to prevent kinking, and seal all wall penetrations per local mechanical code requirements after the lines are run.

Technical Specifications

• Liquid Line Diameter: 1/4 inch
• Suction Line Diameter: 5/8 inch
• Line Set Length: 25 feet
• Application: Mini Split Refrigerant System

Standard Information

• Brand: MUELLER INDUSTRIES
• Manufacturer Part Number: MUE-41020250B3B6