Leak Saver UV Dye — 3 Pack refrigerant leak detection dye only for systems up to 5 ton, Made in USA

Leak Saver UV Dye is a concentrated, dye-only solution that makes refrigerant leaks visible under UV light so you can locate breaches fast without adding any sealant.

Designed for technicians and DIYers, this three-pack of Leak Saver UV Dye injects easily into automotive, residential, commercial, and marine cooling systems up to 5 tons. The formula is manufactured in the USA and formulated to work with virtually every common refrigerant and oil type (except ammonia), so you can diagnose leaks across vehicles, mini-splits, central ACs, heat pumps, and refrigeration equipment without altering system chemistry.

How do I add this dye to my HVAC or refrigeration system?

Injecting the dye is straightforward: attach a standard manifold gauge set or the Leak Shot injector, introduce the dye into the low-side port, run the system under normal cooling, then scan with a UV light. No pressurized cans or tricky syringes are required when using standard service tools.

• Use a manifold gauge or Leak Shot injector for direct introduction
• For automotive R134a systems, use a 1/4" charging adapter
• Run the system 30–60 minutes at full cooling for circulation
• Scan suspected areas with a UV flashlight in shaded or darkened conditions

Which systems and refrigerants are compatible with this dye?

The formula is compatible with most refrigeration and air conditioning systems and works with a wide range of refrigerants and lubricants, excluding ammonia-based systems. It is safe for mineral oil, PAG, and ester lubricants and will not harm gauges, hoses, or expansion devices when used as directed.

• Works with R410A, R22, R134a, R1234yf, R404A, R290, R600a and more
• Compatible with central AC, automotive A/C, mini-splits, heat pumps, and commercial refrigeration
• Safe for TXVs, capillary tubes, Schrader valves, and manifold equipment
• Not for use with ammonia refrigeration systems

What results should I expect and how will the dye appear?

Once the dye reaches a leak point and is illuminated with a UV flashlight, it fluoresces brightly and is often visible to the naked eye in daylight under the right conditions. For most leaks, a short inspection with an appropriate UV lamp will reveal a clear glowing trail or concentrated spot where refrigerant escapes.

• Bright fluorescence at the leak site under UV light
• Often visible without instruments in shaded settings
• Helps pinpoint small or hard-to-find leaks that are otherwise invisible
• No sealant present — product only helps detect leaks

Who is this product for? Leak Saver UV Dye is ideal for HVAC technicians, automotive service professionals, refrigeration specialists, and knowledgeable DIY homeowners who need a reliable, dye-only diagnostic tool. Choose this pack if you want a US-made detection dye compatible with most refrigerants and oils, prefer injecting with standard service equipment, and need an accurate, non-sealing method to locate leaks before repair.