BigEZ™ Replacement Cartridges

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For Medium to Large Size Systems Most economical for larger systems.


Works in all systems, including high-pressure R-410A systems! The revolutionary way to add fluorescent dyes into air conditioning and refrigeration systems — without the use of additional refrigerant! Just one connection, then turn the handle to inject the dye. No complicated hookups! Ideal for preventive maintenance programs and for multiple, medium to large AC&R units.

SPECTROLINE is the world’s leading manufacturer of ultraviolet technologies and fluorescent leak detection products trusted by companies around the world since 1955. The ultraviolet products and fluorescent dyes are used for preventive maintenance around the world, protecting systems ranging from vehicles to industrial manufacturing operations.

BigEZ™ Replacement Cartridges Benefits: 

  • For all AC&R systems, including high-pressure R-410A systems! Compatible with Mineral Oil, PVE, Polyol Ester and Alkyl Benzene Lubricant Systems.
  • Cost-effective for medium to large size systems — Each prefilled, disposable 4 oz (118 ml) BigEZ dye cartridge treats up to 16 gallons (60.8 L) of lubricant, 400 lbs (180 kg) of refrigerant or 150 tons of cooling.
  • No pouring, no refrigerant, no spills — Prefilled Big-EZ™ cartridges are clearly labelled with 32 calibrations so you’ll introduce exactly the right amount of dye every time! When the cartridge is empty, just throw it away. A new one connects in seconds.
  • Check valve prevents the backflow of dye or refrigerant and allows for easy storage of the hose/cartridge between jobs. It also prevents dye leakage or contamination. Torque
    from the Big-EZ™ assembly easily overcomes AC&R system pressure, even with R-410A.

BigEZ™ Replacement Cartridges Contains: 

  • 1 0r 3 x Universal/POE Multi-Dose 4 oz (118 ml) Dye Cartridge

BigEZ™ Replacement Cartridges – How It Works:

  1. Install the cartridge, then connect the injector hose to the system’s low-side service port. Turn the handle to inject the exact amount of dye required and let it circulate.
  2. Scan the system with a Spectroline® inspection lamp. The precise location of all leaks will be shown by a bright, yellow-green glow.

BigEZ™ Replacement Cartridges Specifications:

  • Item: 4 oz. (118 ml) cartridge
  • Typical Application: For Medium to Large Size Systems
  • Amount of Oil in System: One per 1/2 gallon of Oil
  • Amount of Refrigerant: One per  5 tonnes
  • Dye Type: Universal/POE
  • Type of Compressor Oil: POE, Alkylbenzene, or Mineral
  • Manufacturer’s Warranty Length: 1 Year
  • Country of Origin: USA.

Most economical for larger systems. Works in all systems, including high-pressure R-410A systems!

BigEZ™ Replacement CartridgeNote: All universal/POE dye cartridges are NSF Certified and registered to meet food-grade processing requirements for category codes HTX-2 and HX-2.


Additional information


One Pack, Three Pack

Shipping, Delivery and Returns

Delivery and Returns:

Delivery is by courier from Auckland, delivery times may vary. All Auckland orders are delivered the next business day, other main business centres and standard areas are within two-three business days from payment.
All rural areas are subject to normal rural delivery times.
For more details on delivery please feel free to contact us before ordering. Please contact us for Return Authorisation before returning.

Satisfaction Guarantee:

If you are not completely satisfied with your purchase, simply contact us to return it within 30 days in the original packaging and condition supplied for a full refund.

Warranty Information:

Unless specified all products carry a minimum 12-month manufacturer’s return to base warranty. HVACTOOLS will provide full support for this warranty. All products that are found to be faulty within 30 days of purchase will be replaced with brand new products.