What is the best replacement for R22?

Author: Mabel Johnson  |  Last update: Saturday, June 27, 2026

Freon MO99 is the closest capacity match to R-22, compared with most other no-oil change refrigerants.

What refrigerant can I use in place of R-22?

An R-22 Refrigerant Replacement for Direct Expansion Refrigeration. Freon™ MO29 (R-422D) refrigerant is a low-toxicity, non-ozone depleting hydrofluorocarbon (HFC) replacement for R-22.

Is there a drop-in replacement for R-22 Freon?

The information below will try to dispel some of these myths. Arkema recommends using Forane® 427A (R427A) - The EASY RETROFIT™ for your r-22 retrofit solution. When it comes to drop-ins, the truth is that there are none. The hope of “drop-in” refrigerants has become common over the years.

Can you flush R-22 to R-410A?

When you replace an air conditioner or heat pump and upgrade from R-22 to R-410A, the ideal solution is to replace your refrigerant lines. This is because the mineral oil used in R-22 systems is not compatible with the new R-410A refrigerant and oil.

Is 407C a good replacement for R-22?

Features and Benefits. Freon™ 407C has been a popular R-22 replacement because of its properties, which include: Similar cooling capacity, energy efficiency, and pressures as R-22 in systems. An ability to be topped off after a leak, multiple times, with minimal impact on system performance.

Is Bluon R-458A The BEST R-22 Replacement Out There? Let’s Find Out!

Can I put 407C on top of R-22?

Mixing R22 with R407C

According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined.

Is 407C being phased out?

The commonly used synthetic refrigerants such as R134a, R407C and R410A have a GWP value higher than 2,500. As a result, their production is being phased out.

How much does it cost to convert R-22 to R-410A?

How much will an R-22 to R-410A conversion cost? The actual cost will depend on many things, including where you live, but most of the time R-22 conversions start at around $2,000 and go up from there. The higher end of that range is somewhere around $4,500 to $4,600.

Can I convert my R-22 to R-410A?

You cannot just switch refrigerants because R410-A and R-22 have different chemical properties. R410-A operates at a higher pressure. If you put R410-A into an R-22 system, the parts will rupture due to the increased force.

Can you top off R-22 with r134a?

Mixing refrigerants is always a no-no.

How much does it cost to get R-22 replacement?

R-22 refrigerant prices range from $90 to $250 per pound. Since you'll need between 6 and 12 pounds to refill a home AC, costs can reach between $660 and $2,400 for a refill of R-22 refrigerant.

What is a refrigerant blend replacing R-22 in a new residential and commercial air conditioning application?

As Freon was phased out, new HVAC systems began using a refrigerant known as Puron® or R-410A, an HFC. More efficient and less harmful to the environment, R-410A has been in use since its introduction in 1996 and is found in most of today's modern HVAC systems.

Can R-454B be retrofitted into existing R-410A or R-22 systems?

ACHR NEWS: As a mildly flammable refrigerant, R-454B can't be retrofitted into existing R-22 and R-410A systems.

Is there a refrigerant that can be mixed with R22?

EPA regulations prohibit mixing different types of refrigerants.

Will AutoZone recharge my AC?

An AC leak will lead to warmer air from your vents over time. In most cases this can be fixed with a proven stop leak additive to seal up any leaks. When it's time for an AC recharge, turn to AutoZone.

What happens if you put R-410A in a R22 system?

The pressure can become high enough for parts of the system to rupture. At the very least, leaks will occur.

What can I use instead of R-22?

Freon MO99 is the gold standard for R-22 alternatives and was developed by the same scientists who engineered Freon R-22. The benefits of Freon MO99 include: Capacity — The ability of Freon MO99 to heat or cool a given space is closer to Freon R-22 than any other refrigerant on the market.

Can I use the same copper piping when replacing my AC unit with R-22 to R-410A refrigerant?

Since the pressure generated by R410a refrigerant is 1.6 times that of R22 refrigerant, it requires that the copper tube has a large density, strong compressive resistance, high copper tube cleanliness and uniform copper tube wall thickness, so the air conditioning system of R410a refrigerant must use special R410a ...

What is the new refrigerant 2025?

What refrigerant will replace R-410A in 2025? For whole-home systems, Lennox has chosen 2025 Compliant Refrigerant R-454B due to its excellent performance for ducted systems and zero ozone depletion potential. For mini-splits, we selected R-32, designed to optimize efficiency and reliability in ductless systems.

How long will R-410A refrigerant be available?

It lined out a timeline to change the industry standard to a non-HFC refrigerant by January 1st, 2025. The American Innovation and Manufacturing Act (AIM) of 2020, which was signed by President Trump, cemented r410a's fate by mandating the EPA to reduce the production of HFCs by 85% over the next 15 years.

Can you use the same line set from R-22 to 410A?

To retrofit an R-22 system with R-410A system your line set must not be more than 25-50 feet in total distance. If the line set is longer than this, you will have to replace the line set with larger lines.

What is a fair price for R-410A refrigerant?

Currently, the price for recharging an air conditioning system with R-410A is around $90 per pound.

What is the new AC refrigerant in 2024?

R-454B has a lower GWP than previous refrigerants, meaning it has a much lower climate impact. Trane is phasing in the transition to R-454B in 2024, starting with the adoption of R-454B refrigerant in its residential products, beginning with the XR15 SEER2 heat pump.

Can you put 407C on top of R-22?

R-407C should be used only in systems that currently use R-22. It should not be mixed with R-22 or any other refrigerant. 5. The capacity of the existing R-22 thermal expansion valve (TEV) will be approximately the same when using R-407C.

Can you buy 407C refrigerant without a license?

Refrigerant can only be sold to technicians who have a license from the relevant state or federal government.

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