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The SPECTROLINE EZ5E-CS is a universal fluorescent leak detection dye cartridge designed for use in air conditioning and refrigeration systems. Formulated to work with mineral oil, POE, PAG, and alkylbenzene lubricants, this 0.5 oz cartridge delivers broad compatibility across common HVAC/R system types. The dye produces a high-visibility fluorescent response under UV or violet inspection lamps, allowing technicians to quickly pinpoint refrigerant and lubricant leak sources. Each cartridge is engineered for use with Spectroline EZ-Ject dye injectors, enabling fast, clean dye installation without introducing additional refrigerant into the system. Licensed HVAC/R technicians performing leak diagnosis and system maintenance are the primary installers.
The EZ5E-CS is intended for residential and commercial air conditioning and refrigeration systems where accurate leak detection is required. Each 0.5 oz cartridge treats up to 12 tons (42.2 kW) of cooling capacity and provides up to four individual applications for typical HVAC/R systems, making it an efficient option for service calls involving multiple units or follow-up inspections. Once injected, the dye remains safely in the system to support future leak inspections and ongoing maintenance diagnostics.
Designed for use in air conditioning and refrigeration systems using mineral oil, POE, PAG, and alkylbenzene lubricants. Requires a Spectroline EZ-Ject dye injector for proper installation.
Installation is performed by a licensed HVAC/R technician using a Spectroline EZ-Ject injector. Follow EPA Section 608 regulations and system manufacturer guidelines when working with refrigerant-containing systems. Recover refrigerant as required before any service access, and use appropriate personal protective equipment when handling refrigerants and lubricants. Do not inject dye without the proper EZ-Ject injector tool, as improper installation can introduce contamination into the refrigerant circuit.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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