Product Description Upgrade your A/C maintenance toolkit with the Enviro-Safe UV Dye Leak Detection Kit. This concentrated fluorescent-yellow dye—formulated to the same standards used by major auto manufacturers—makes even the smallest leaks glow vividly under UV light. Install in just 30 seconds using the optional CO₂ Install Kit and skip the pump-down on R410 or other common refrigerants. The dye is safe for mineral, ester, and PAG oils and works with virtually every type of system—heat pumps, split or mini-split units, packaged systems, microchannel coils, and commercial A/C equipment—except CO₂ (R744) and ammonia (R717). Perfect for HVAC pros, contractors, and homeowners performing routine maintenance or tracking down hard-to-find leaks. Note: Systems larger than 5 Ton may require more than one inject. Not for use in CO₂ or ammonia-based systems. Key Features & Benefits Bright & Accurate Leak Detection – High-intensity fluorescent dye makes leaks glow clearly under UV light. Broad System Compatibility – Safe for all A/C and refrigeration systems except CO₂ (R744) and ammonia (R717). Clean & Efficient – One-time use, highly concentrated formula leaves no mess or residual waste. System-Safe Formula – Compatible with mineral, ester, and PAG oils; no pump-down required for R410 or most other refrigerants. Optional Add-Ons – Pair with high-intensity blacklight, UV safety glasses, and 30-second CO₂ Install Kit for a complete leak-detection solution.