ENVIRO-SAFE R1234YF Stop Leak, Repairs Leaks in R1234YF Vehicle A/C's, DIY Friendly Installation

Enviro-Safe Stop Leak for R1234YF is a professional-grade A/C additive designed to seal common leaks caused by aging O-rings and rubber seals — without the need for costly teardown or component replacement. When added through the low-pressure service port, the formula blends with the existing refrigerant and oil, circulating through the entire system. As it comes in contact with rubber seals, it conditions and swells them back to their original shape, effectively stopping small leaks and helping restore system pressure. Compatible with R1234YF automotive air conditioning systems, this product is ideal for slow, seal-based leaks in compressors, condensers, evaporators, and service fittings. Its R134a-style top makes it simple to install with the proper adapter. Perfect for DIY users and professionals alike, Enviro-Safe Stop Leak can help reduce or eliminate the need for annual recharges, saving both time and money.

• Seal Leaks Without Disassembly – Conditions and swells old O-rings and rubber seals to stop refrigerant leaks in R1234YF automotive A/C system
• Easy DIY Application – Connect directly to the low-pressure service port with a compatible R134a-style top adapter—no tools or teardown required.
• Circulates Through Entire System – Blends with refrigerant and oil to treat compressors, condensers, evaporators, and fittings for long-lasting leak prevention.
• Restore Cooling Performance – Helps maintain proper system pressure, reduce refrigerant loss, and improve cold air output.
• Save on Costly Repairs – Ideal for small, seal-based leaks—extend system life and reduce the need for annual recharge services.
• Compatible With Most Oils – Works with PAG, ester, and mineral oils commonly used in modern R1234YF automotive A/C systems.
• Professional or DIY Use – Suitable for automotive technicians, fleet maintenance, and confident DIYers looking for a quick, effective seal solution.
• Eco-Conscious Choice – Non-ozone depleting formulation designed for lower environmental impact compared to traditional products.