Cambridge 223578 Mini Split Lineset 1/4x5/8x50 Ft 5 Pack

Product Description

The CAMBRIDGE 223578 is a pre-paired mini split lineset designed for residential and light commercial ductless HVAC installations. Each lineset consists of a 1/4-inch liquid line and a 5/8-inch suction line, running 50 feet in length. The suction line is wrapped in 1/2-inch black tear-resistant insulation to protect against UV exposure and physical damage during and after installation. This product ships in a box of five linesets, making it well suited for contractors running multiple installs or stocking a service vehicle.

This lineset is used in ductless mini split systems where the indoor air handler must be connected to an outdoor condensing unit. The 1/4-inch by 5/8-inch line combination is a common sizing for single-zone mini split systems in the 9,000 to 18,000 BTU/h range. The 50-foot run length accommodates most residential wall-mount and ceiling-cassette installations where the outdoor unit is positioned on a ground pad or rooftop nearby. HVAC technicians typically pull this lineset through wall sleeves or conduit runs during new construction or retrofit projects.

Key Features

• 1/4-inch liquid line and 5/8-inch suction line paired in a single 50-foot run
• 1/2-inch black tear-resistant insulation on the suction line reduces energy loss and resists job-site damage
• Black insulation finish suited for exposed exterior runs where appearance matters
• Sold in a box of five linesets for multi-unit contractors or inventory stocking
• 50-foot length covers the majority of standard residential mini split installations

Compatibility

Designed as a standard-sized replacement or new-installation lineset for ductless mini split systems requiring a 1/4-inch by 5/8-inch line pair with a 50-foot run.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with EPA Section 608 refrigerant handling regulations. Power down the outdoor condensing unit and indoor air handler at the disconnect and breaker before making any line connections. Avoid kinking the copper lines during uncoiling and routing through wall sleeves or conduit. Pressure-test and evacuate the lineset to the equipment manufacturer's specification before releasing refrigerant into the system.

Technical Specifications

• Liquid Line Diameter: 1/4 inch
• Suction Line Diameter: 5/8 inch
• Lineset Length: 50 feet
• Insulation Thickness: 1/2 inch
• Insulation Color: Black
• Insulation Type: Tear-Resistant
• Quantity per Box: 5

Standard Information

• Brand: CAMBRIDGE
• Manufacturer Part Number: 223578