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P-T Calculator

This comprehensive Pressure/Temperature calculation tool provides several unique features designed to make the HVAC/R technician’s job easier.

Available for iOS and Android devices:

 

Need R-22?
We Have It in Stock!

R-22 has been phased out and as of Jan 1, 2020 can no longer be produced or imported. However, National Refrigerants has R-22 available for your present and future use.

View R-22

California Regulations

Guide to CA regulations on R-134a Cans

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Work with NRI’s Refrigerant Experts

When you need someone you can trust with your refrigerant challenges, choose NRI for its variety of services, delivered by the country’s largest, most knowledgeable team.

NRI: Your Source for
Automotive AC Refrigerants

Keep your customers cool with
National R-134A and R-1234YF refrigerants.

Visit Our Automotive Page

NRI Is the Industry Leader
for Refrigerants

500 Locations

Worldwide

30 Refrigerant

Varieties

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Services

Independently

Owned

Resources

Let’s make your job easier, together. Check out our most popular resources or visit our Resource Center for even more valuable information and tools.