Mueller Streamline 100000186 Line Set 3/4x3/8 50ft

Product Description

The MUELLER STREAMLINE 100000186 is a pre-insulated refrigerant line set sized at 3/4 inch suction line by 3/8 inch liquid line, spanning 50 feet in length. Line sets of this configuration carry refrigerant between the outdoor condensing unit and the indoor evaporator coil in split-system air conditioning and heat pump installations. The insulation on the suction line limits heat gain and helps maintain system efficiency. HVAC technicians use line sets like this during new equipment installations and equipment changeouts where existing linework is not reused.

This line set is suited for residential and light commercial split-system HVAC applications. The 3/4 inch suction line diameter and 3/8 inch liquid line diameter are standard sizing for many mid-range and larger capacity residential cooling systems. The 50-foot length provides enough run for most single-story and two-story residential installations where the air handler and condenser are in close proximity. The coil of pre-insulated copper tubing reduces field prep time compared to running individual lines on the job.

Key Features

• Suction line diameter: 3/4 inches, liquid line diameter: 3/8 inches
• Total length: 50 feet, providing ample run for most residential split-system installs
• Pre-installed insulation on suction line limits heat gain and condensation
• Factory-paired sizing reduces field measurement and insulation wrap time
• Compatible with common residential and light commercial split-system configurations

Compatibility

Designed as a standard OEM-style refrigerant line set for residential and light commercial split-system air conditioners and heat pumps requiring 3/4 inch suction and 3/8 inch liquid line connections.

Installation Notes

Installation should be performed by a licensed HVAC technician holding an EPA Section 608 certification for refrigerant handling. Power down the condensing unit and air handler at the disconnect and breaker before making any connections. Ensure line set routing avoids sharp bends that could restrict refrigerant flow or damage the copper tubing, and support the line set at regular intervals per local mechanical code requirements. Leak-test all brazed or flared connections before evacuating and charging the system.

Technical Specifications

• Suction Line Diameter: 3/4 inches
• Liquid Line Diameter: 3/8 inches
• Length: 50 feet
• Insulation: Pre-insulated suction line
• UPC: 70685768304806

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 100000186