ERRECOM A/C Leak Stop Cartridge 6 mL — Polymer-Free, Includes R1234yf & R134a Adapters

Errecom Extreme Ultra is a polymer-free A/C leak stop cartridge designed to halt small refrigerant leaks in vehicle air-conditioning systems and is compatible with all refrigerants and lubricants.

Packaged as a compact 0.2 fl oz (6 mL) cartridge with adapters for both R1234yf and R134a, this solution is made in Italy and engineered for professional-grade repairs and preventative maintenance. The formula avoids polymers that can react with moisture or oxygen, so it protects delicate HVAC/R parts such as expansion devices and Schrader valves. The cartridge is part of a reusable, refillable system backed by a U.S. patent, allowing technicians to replace only the cartridge for subsequent applications.

How does Extreme Ultra stop A/C refrigerant leaks?

Extreme Ultra uses a reactive chemistry that seals small pinholes and microleaks without introducing polymers that can gum or clog system components. Before applying, technicians should perform a five-minute vacuum test to confirm the leak is repairable with a sealant approach.

• Seals small refrigerant leaks in evaporators, condensers, and hoses
• Compatible with both R1234yf and R134a systems when using included adapters
• Polymer-free, reducing risk of blockage in TXVs, TEVs, and capillary tubes
• Applies quickly through the refillable cartridge system

Will this product damage A/C components or affect system performance?

No — the Extreme Ultra formulation is designed to avoid reactions with moisture and oxygen, which lowers the chance of deposits or component failure. Because it does not contain polymers, it minimizes risk to expansion valves, accumulators, and Schrader cores when used according to instructions.

• OEM-approved formula developed in Errecom’s chemical lab
• No polymer-based residues that can restrict capillary tubes or valves
• Safe for use with common A/C lubricants and oils
• Recommended for technicians who follow standard vacuum testing

How do I use the cartridge and adapters during a repair?

Attach the included adapter that matches the vehicle refrigerant (R1234yf or R134a) and install the 6 mL cartridge into the reusable Errecom delivery tool. After confirming the system is suitable via vacuum test, inject the cartridge contents per the tool instructions and monitor system pressure and performance.

• Includes R1234yf and R134a adapters for broad compatibility
• Install cartridge into the reusable Errecom applicator tool
• Perform a 5-minute vacuum test before application
• Refill future repairs by replacing just the cartridge

How long does the repair last and when should I reuse it?

Extreme Ultra is intended to arrest small leaks and provide long-term sealing for those defects; longevity depends on leak size, system condition, and operating environment. For recurring maintenance, the system’s reusable design lets technicians swap cartridges for subsequent treatments without replacing the entire delivery assembly.

• Best for small leaks and preventative maintenance tasks
• Cartridge capacity suited to single or targeted repairs
• Reusable delivery system reduces long-term consumable cost
• Monitor system pressures and temperatures after treatment

Who is this for? Errecom Extreme Ultra is intended for HVAC technicians, mobile A/C specialists, and experienced DIYers who perform diagnostic vacuum tests and want a reliable, OEM-approved small-leak solution compatible with modern refrigerants. It’s especially useful for shops that prefer a refillable cartridge system to lower consumable expense while avoiding polymer-based sealants that can risk system components.