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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Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, One Size Treats Systems 2 to 7.5 Tons

Product ID: 43345900

💧Concentrated formula, less product needed

🔍UV dye for instant leak detection

⚙️No pump down required for R-410A units

471.58 DT

Duties & taxes included

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Description

💡 Seal smarter, not harder—join the million+ pros who trust EasySeal!

SEE IT WORK - Clear injection tube lets you visually confirm the sealant entering the system—no guesswork, just results.
PROVEN RELIABILITY - Backed by over a million leaks sealed and proudly made in the USA, this one-time use sealant is your go-to for lasting peace of mind.
PUMP DOWN NO WAY - Eliminates the need to pump down R-410A units, saving you time and hassle on every job.
SEAL WITH PRECISION - Concentrated formula means you use less sealant per system, maximizing efficiency and minimizing waste.
VERSATILE COMPATIBILITY - Perfectly engineered for split systems, heat pumps, microchannel coils, packaged units, and mini splits—one sealant to rule them all.

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant is a concentrated, one-time use formula designed for systems 2 to 7.5 tons. Featuring a clear injection tube and UV dye for leak detection, it requires no pump down on R-410A units and works across a wide range of HVAC systems. Made in the USA and proven with over a million leaks sealed, it delivers fast, reliable sealing with professional-grade convenience.

Specifications

ASIN	B072Q3MX47
Best Sellers Rank	#14,654 in Automotive ( See Top 100 in Automotive ) #71 in Air Conditioning Line Repair Tools
Date First Available	June 1, 2017
Item Weight	0.16 ounces
Item model number	4050-11
Manufacturer	Nu-Calgon Wholesaler, Inc.
Product Dimensions	9.7 x 3 x 1.5 inches

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