Cool + Seal + UV Detection
ALL IN ONE CAN
LeakFinder® R-134a Recharge with A/C Leak Stop + UV Dye
1. Recharge Cooling
Restores lost refrigerant charge for maximum A/C performance.
2. Seal Micro-Leaks
Flows with refrigerant, sealing leaks from the inside.
3. UV Leak Detection
Built-in dye for ongoing visibility with any UV lamp.
Trusted by
Leading Auto Manufacturers Worldwide
Tracer Products is the only OEM-trusted manufacturer for UV leak detection solutions.
Trusted Automotive Brand
Backed by Tracer technology, trusted in over 350 million vehicles worldwide
EV & Hybrid Safe
Engineered for modern vehicle systems using R-134a refrigerant.
SAE J2297 Compliant
Meets industry standards for UV dye, ensuring professional-grade safety and reliability.
RRR Equipment Safe
UV dye is fully compatible with recovery, recycling & recharge (RRR) equipment.
How LF134 Works Inside Your A/C
Restore Cooling Power
Restores lost refrigerant for maximum cooling performance.
Seal from the Inside
Flows with oil and refrigerant to form flexible seals at leak points.
Built-In UV Dye
Circulates safely with system oil, marking leaks for any UV lamp.
24/7 Leak Protection
Remains active to help monitor your A/C system for future leaks.
What Makes LF134 Different
Recharge Cooling
Restores lost refrigerant charge for maximum performance.
Seal Micro-Leaks
Permanently seals leaks from the inside. O-rings, hoses, evaporators.
UV Leak Detection
Built-in dye for ongoing visibility with any UV lamp.
EV & Hybrid Safe
Engineered for modern vehicle
systems using R-134a.
Trusted OEM Brand
Backed by Tracer Products, the only OEM-trusted manufacturer.
DIY-Friendly with Hose Option
Available with a high-quality reusable brass injector hose (LF134H).
HOW TO USE LF134
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Prepare – Shake can well. Start engine, set A/C to MAX COOL, and remove port caps.
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Connect – Attach can with hose adapter. Purge air, then connect to the low-side service port.
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Charge – Invert can and shake while charging. Fill 5–15 minutes until empty. Do not overcharge.
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Locate Leaks – Run A/C for 15 minutes, then scan with a UV lamp. Dye glows yellow-green at leak points.
⚠️ Always wear safety glasses and follow full label instructions.
Two Configurations. Same 3-in-1 Formula.
Both versions deliver recharge + leak stop + UV dye. Choose the setup that fits your toolkit.
Questions About LF134?
A premium 3‑in‑1 R‑134a recharge can that recharges the A/C system, seals small leaks, and adds UV dye for ongoing leak detection. It’s designed as a quick, affordable solution for DIYers and out‑of‑warranty service. LF134 is the stand‑alone can; LF134H is the can plus a reusable R‑134a hose with brass injector.
As the refrigerant circulates, it restores lost charge. The non‑hardening sealant flows with oil/refrigerant, seeking micro‑leaks and forming a flexible seal from the inside at condensers, evaporators, O‑rings, and hoses. The UV dye stays in the system for future detection with any UV lamp.
Yes. The formulation is EV/Hybrid safe and the UV dye meets SAE J2297. It’s also RRR‑equipment safe, addressing the most common shop concern about sealants.
Both are 10 oz R‑134a 3‑in‑1 cans that service one vehicle. LF134H includes a reusable R‑134a hose with brass injector for easier installs and repeat use; LF134 is the can only.
It targets small/micro‑leaks in condensers, evaporators, accumulators, O‑rings, and hoses, helping restore system integrity and cooling performance.
Connect the can to the low-side service port, run the A/C, and follow the instructions on the can.
Nota: The system must be operating and contain enough refrigerant for the sealant to circulate. After service, use a UV lamp to confirm leak detection.
Yes. LF134/LF134H is universally compatible with R‑134a automotive A/C systems, so the 10‑oz can is designed to service one vehicle across a range of sizes - from compact cars to large SUVs and trucks that use R‑134a.