The Lennox Y8701 DiversiTech 985 Flex Inject Sealant is a professional-grade advanced leak sealant designed to permanently seal small refrigerant leaks in HVAC and refrigeration systems. This single-use 0.3 oz hose delivers a precise amount of sealant directly into the system, helping stop leaks in evaporators, condensers, copper tubing, aluminum components, and soldered joints. The Flex Inject formula remains dormant until it encounters air or moisture at the leak site, where it activates to form a durable seal without clogging components or restricting system flow. Compatible with most common refrigerants and oils, this sealant is ideal for service technicians performing fast, reliable leak repairs during maintenance or emergency calls.

 

Key features:

• Advanced leak-sealing formula activated only at the leak site
• Single-use 0.3 oz hose for accurate, controlled application
• Helps seal micro-leaks in copper, aluminum, evaporators, condensers, and joints
• Non-polymer, non-clogging design safe for HVAC/R system components
• Compatible with most refrigerants and lubricating oils
• Ideal for residential and light commercial HVAC service applications

 

Technical specifications:

Brand: DiversiTech
Manufacturer part number: 985
Lennox part number: Y8701
Product type: HVAC refrigerant leak sealant
Application method: Flex Inject single-use hose
Net contents: 0.3 ounce
Use: Single application