ERRECOM Errecom Extreme Ultra A/C Leak Stop Cartridge 0.2 fl oz (6 mL) — Polymer-Free, Works with All Refrigerants for Systems up

Errecom Extreme Ultra is a polymer-free A/C and refrigeration leak stop cartridge designed to seal small refrigerant leaks in systems up to 6 tons (21 kW) while remaining compatible with all refrigerants and lubricants.

This compact 0.2 fl oz (6 mL) cartridge connects to Errecom’s reusable dispenser and supplies a lab-developed formula that safely targets minor leaks without introducing polymers that can cause blockages. Engineered and manufactured in Italy, Extreme Ultra was created for HVAC/R professionals who need a fast, service-friendly solution that won’t harm expansion devices or Schrader valves.

How quickly does Extreme Ultra stop leaks?

Extreme Ultra is formulated to address small refrigerant leaks rapidly when the system is suitable for repair. Always perform a five-minute vacuum test first to confirm the leak size and location; after that, the cartridge can be applied and will work during normal system operation.

• Use with the reusable Errecom dispensing tool for controlled delivery.
• Best for small capillary-style or micro-fittings leaks rather than large failures.
• Works while the system cycles—no lengthy cure times required.

Will this product harm my HVAC/R components or clog valves?

Extreme Ultra uses a polymer-free composition developed to avoid reactions with moisture or oxygen, minimizing the risk of deposits that block thermostatic and electronic expansion devices. The formula was specifically designed to protect delicate components while remaining compatible with common system parts.

• Safe for TXVs, TEVs, capillary tubes and Schrader valves when used per instructions.
• No polymer residues that can obstruct flow passages.
• OEM-approved chemistry from Errecom’s in-house laboratory.

Which systems and refrigerants are compatible with Extreme Ultra?

Extreme Ultra is formulated to be broadly compatible: it functions with all common refrigerants and with the lubricants typically found in HVAC/R systems. It is rated for systems up to approximately 6 tons (21 kW), making it suitable for many residential and light-commercial applications.

• Works with HFCs, HCFCs and other standard refrigerant types used in HVAC/R.
• Compatible with mineral and synthetic oils used by OEMs.
• Recommended for systems up to 6 tons (21 kW) capacity.

How do I use the cartridge and what about refills?

The cartridge installs into Errecom’s reusable dispensing system and includes 1/4 SAE and 5/16 SAE adapters for common service ports. Because the dispensing tool is refillable, technicians can buy only replacement cartridges after the initial purchase, reducing waste and long-term cost.

• Includes 1/4 SAE and 5/16 SAE adapters for versatile connection options.
• US-patented reusable dispenser system (US 11002470) for multiple applications.
• Simply replace the 6 mL cartridge for subsequent repairs.

Who is this for? Errecom Extreme Ultra is targeted at HVAC/R technicians, maintenance teams, and service professionals who need a compact, OEM-approved leak stop that is safe for sensitive system parts and compatible with a wide range of refrigerants and oils. It’s also useful for preventive maintenance programs to reduce the risk of developing leaks. For best results, use it only on small leaks confirmed by vacuum testing and follow manufacturer instructions for system compatibility and safe handling.