The Lennox 28J80 MAXIPRO 5/8" Straight Coupler pack is designed for secure, reliable, and flameless copper-to-copper connections in HVAC refrigeration systems. Each coupler features the MAXIPRO press-fit design, allowing technicians to complete airtight joints quickly without the need for brazing, open flames, or nitrogen purging. Ideal for heat pumps, air conditioners, and mini-split installations, these fittings ensure consistent performance and long-term system integrity.

This 5-pack provides excellent value for service calls and multi-unit installs, helping contractors maintain efficiency and reduce labor time. Engineered to meet strict HVAC/R standards, the MAXIPRO couplers deliver durability, vibration resistance, and leak-free operation under high-pressure conditions.

 

Key features:

• 5/8 inch straight coupler, compatible with standard refrigeration copper tubing
• Press-to-connect MAXIPRO design eliminates brazing and torches
• UL recognized and approved for HVAC/R applications
• Fast installation reduces labor and downtime
• Reliable sealing performance under high operating pressures
• Ideal for residential and commercial HVAC systems
• Pack includes 5 couplers