you can use on R22 also yes, it works on all refrigerants.

What will happen if used on a 1-ton system?

You will probably be putting too much in. They make a smaller dosage unit, but it doesn't have the dye in it. You can get a dye injector and inject the dye separately. You can use the smaller unit on automotive applications. The company is in St. Louis, MO and I had called their tool free number. Very Helpful.

Can I use this sealer in an empty mini split using pressurized nitrogen?

Needs to be installed when charging the system as it needs to circulate for about an hour with system running after fully charged

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💡 Seal leaks like a pro—see it, trust it, fix it fast!

VISIBLE ASSURANCE - Clear tube design lets you watch the sealant in action, ensuring confidence in every drop
SINGLE USE SIMPLICITY - One-size, one-time application for hassle-free maintenance and leak sealing
EFFORTLESS APPLICATION - Direct injection with UV dye means no pumping required, saving time on R-410A units
PRECISION CONCENTRATION - Less sealant, more efficiency—treats 2-7.5 ton systems with minimal waste
VERSATILE COMPATIBILITY - Perfectly engineered for split systems, heat pumps, microchannel streamers, packaged units, and mini splits

Nu-Calgon 4050-11 EasySeal is a concentrated refrigerant leak sealant with direct injection UV dye, designed for quick, visible, and efficient sealing of 2-7.5 ton HVAC systems. Its clear tube allows real-time monitoring of sealant flow, while the no-pump formula simplifies application across various system types including split systems and heat pumps.

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Manufacturer	Nu-Calgon Wholesaler, Inc.
Brand	Nu-Calgon
Model number	4050-11
Product Dimensions	24.64 x 7.62 x 3.81 cm; 4.54 g
Number of Items	1
Manufacturer Part Number	4050-11
Item Weight	4.54 g

Nu-Calgon 4050-11 easyseal refrigerant leak sealant with direct injection uv dye, one size treats 2-7.5 ton systems

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