The Lennox 89J54 (Cerroset 610803500009) is a 35-foot insulated lineset designed for reliable refrigerant transfer in residential and light commercial HVAC systems. This plain-end lineset features a 3/8 inch liquid line and a 5/8 inch suction line, each wrapped in durable 3/8 inch wall insulation to support efficiency and minimize thermal loss. Manufactured in a standard black finish, it provides clean installation, long-lasting performance, and compatibility with a wide range of Lennox and non-Lennox systems. Ideal for replacements, upgrades, and new system installations requiring dependable refrigerant piping.

 

Key Features:

• Standard insulated lineset with 3/8" liquid line and 5/8" suction line
• 35-foot length supports most residential system layouts
• 3/8" wall insulation for thermal protection and efficiency retention
• Plain-end design for flexible field brazing and installation
• Black exterior for professional, low-visibility routing
• Compatible with many Lennox models and other HVAC brands

 

Specifications:

Length: 35 ft
Liquid Line Size: 3/8 inch
Suction Line Size: 5/8 inch
Insulation Thickness: 3/8 inch
End Type: Plain End
Color: Black
Application: HVAC refrigerant line installation