If you’re in the HVAC industry or a property owner maintaining older air conditioning systems, chances are you’re already facing the challenge of replacing R-22 refrigerant. With production and import of R-22 (also known as HCFC-22) officially phased out, finding a dependable, efficient, and compatible alternative is essential. This is where NU-22B Freon Refrigerant (also known as R-422B) stands out as a top solution.

In this post, we’ll explore everything you need to know about NU-22B Freon 25 LB Refrigerant, including its benefits, compatibility, usage, and why it’s one of the best R-22 replacements on the market today.

What is NU-22B Refrigerant?

NU-22B, also known by its industry name R-422B, is a non-ozone depleting HFC (hydrofluorocarbon) refrigerant designed as a direct replacement for R-22 in existing air conditioning and refrigeration systems. Developed by ICOR and also distributed by Chemours, NU-22B provides a seamless retrofit experience.

This refrigerant is engineered to minimize downtime, reduce conversion costs, and offer exceptional performance in both residential and commercial applications.

Why Replace R-22?

Before we dive deeper into NU-22B, let’s quickly understand why R-22 is being replaced and why it’s important for property owners and technicians to act fast.

The R-22 Phase-Out

Due to its ozone-depleting properties, R-22 was banned for production and import in the U.S. as of January 1, 2020 under the Clean Air Act. The result? Prices skyrocketed, and availability plummeted. Technicians and businesses are now under pressure to find viable substitutes.

If your system still runs on R-22, switching to a suitable replacement like NU-22B refrigerant can help extend the life of your AC or refrigeration units—without major system overhauls.

Benefits of NU-22B Refrigerant (R-422B)

NU-22B offers a wide range of benefits for both HVAC professionals and end-users. Here's why it’s become one of the top-selling refrigerants on the market:

1. Direct Drop-In Replacement for R-22

✔ No need to replace the entire system
✔ Works with existing R-22 equipment components
✔ Saves time and labor costs

2. No Oil Change Required

✔ Compatible with mineral oil, alkylbenzene, and POE oils
✔ Unlike other alternatives, NU-22B does not require an extensive oil flush or change

3. Fast and Easy Retrofit

✔ No need for extensive modifications
✔ Shorter installation time, less downtime for your business or home

4. Safe and Environmentally Friendly

✔ Non-ozone depleting HFC blend
✔ Complies with EPA standards and Clean Air Act regulations

5. Readily Available – Same Day Shipping

• At RoyalRefrigerants.com, we offer same business day shipping on all NU-22B 25 lb cylinders

📦 Product Overview: NU-22B FREON 25 LB Refrigerant

✔ Brand: ICOR / Chemours
✔ Product Type: R-422B Refrigerant
✔ Cylinder Size: 25 lbs
✔ Compatibility: Direct R-22 replacement
✔ Shipping: Same Business Day (orders placed before cutoff)

Whether you're a contractor preparing for a busy HVAC season or a property manager ensuring your systems stay functional, this 25 lb cylinder of NU-22B Freon has the capacity and convenience you need.

👉 Buy NU-22B Refrigerant Now

🔄 NU-22B Retrofit Guide: How to Switch from R-22

One of NU-22B's biggest selling points is how easy it is to transition from R-22. Here’s a simplified overview of the retrofit process:

1. Evaluate the System

✔ Check system components for wear
✔ Inspect for leaks or contamination

2. Recover Existing R-22

✔ Safely remove and dispose of any remaining R-22 in compliance with EPA guidelines

3. Replace the Filter-Drier

✔ It's best practice to install a new drier to ensure moisture and contaminants are removed

4. Charge with NU-22B

✔ Charge the system using the same charging techniques as with R-22
✔ Use appropriate temperature-pressure charts for R-422B

5. Monitor and Optimize

✔ Verify performance through superheat and subcooling measurements
✔ Make adjustments as needed for optimal efficiency

Common Applications for NU-22B

✔ Central air conditioning units
✔ Commercial rooftop HVAC systems
✔ Walk-in coolers and freezers
✔ Supermarket display cases
✔ Packaged terminal AC (PTAC) units
✔ Industrial chillers
✔ Residential HVAC systems

Because of its versatility, NU-22B is an excellent solution across both commercial and residential systems, especially those originally designed for R-22.

Performance Comparison: NU-22B vs. R-22

Frequently Asked Questions (FAQs)

Q1: Is NU-22B a direct replacement for R-22?

Yes, NU-22B is a direct drop-in replacement for R-22. It is compatible with most existing R-22 components and oils.

Q2: Do I need to change the oil in my system?

No, NU-22B is compatible with mineral oil, alkylbenzene, and POE, so no oil change is typically required.

Q3: Can NU-22B be used in both residential and commercial systems?

Absolutely. NU-22B is suitable for a wide range of applications including home AC units, commercial refrigeration, and industrial cooling systems.

Q4: How quickly can I get NU-22B delivered?

At RoyalRefrigerants.com, we offer same business day shipping on all orders placed before the cutoff time.

Q5: Is NU-22B environmentally friendly?

Yes, NU-22B is an HFC blend that does not deplete the ozone layer and complies with EPA regulations.

Final Thoughts: Why NU-22B is the Right Choice for You

If you're searching for a cost-effective, reliable, and easy-to-use R-22 replacement, NU-22B refrigerant should be at the top of your list. It provides solid performance without the need for complex conversions or costly system upgrades.

By switching to NU-22B, you're not only protecting your HVAC investment—you’re also choosing an environmentally responsible solution.

🚛 Order Now – Same Day Shipping Available

At Royal Refrigerants, we are proud to offer:

✔ Competitive pricing
✔ Fast shipping
✔ Expert support
✔ High-quality refrigerants

👉 Shop NU-22B Refrigerant Today and enjoy reliable cooling performance without delay!