R-438A MO99 Direct Retrofit Refrigerant Gas Cylinder for R-22 Systems
R-438A MO99 Direct Retrofit Refrigerant Gas Cylinder for R-22 Systems
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R-438A MO99 Direct Retrofit Refrigerant Gas Cylinder for R-22 Systems
Seamless Drop-In Refrigerant Solution for R-22 Replacement
Upgrade existing cooling units effortlessly using versatile R-438A MO99 refrigerant. Designed specifically as a direct retrofit gas for older systems operating on R-22, this hydrofluorocarbon formulation eliminates the requirement for complex oil changes during maintenance. Technicians can restore chilling power quickly in air conditioning and expansion evaporator applications. Enjoy smooth system conversion while keeping maintenance costs and operational downtime to a minimum.
Effortless System Conversion - R22 retrofit gas
Allows fast retrofit procedures without necessitating complicated oil flushes or major component swaps.
Zero Ozone Depletion - non ozone depleting refrigerant
Provides an environmentally compliant gas option that keeps air conditioning infrastructure operational for years to come.
Reliable Operational Pressures - HVAC cooling refrigerant
Matches operational parameters closely to maintain original cooling output in existing expansion evaporators.
Technical Specifications
- Chemical Name: R-438A (MO99) HFC Blend
- Purity Rating: Tested to meet AHRI-700 standard purity
- Oil Compatibility: Works with Mineral Oil, AB, and POE lubricants
- Primary Application: Retrofitting existing R-22 air conditioning units
Package Includes
- 1 x Sealed Cylinder of Virgin Gas
Frequently Asked Questions
Q: Do I need to change system oil when using this retrofit refrigerant?
A: In most standard systems, MO99 is compatible with traditional mineral oils as well as synthetic POE oils without oil change procedures.
Q: Does this cylinder contain pure virgin gas?
A: Yes, every cylinder is packed with brand new, factory-sealed virgin compound for optimum refrigeration stability.

Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Highly recommended for all HVAC and refrigeration pros.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Clean cylinder with verified pressure.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Five stars all the way.
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22. Fast shipping and excellent communication.
- 5 stars: 31 (94%)
- 4 stars: 2 (6%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Highly recommended for all HVAC and refrigeration pros.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Clean cylinder with verified pressure.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Five stars all the way.
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22. Fast shipping and excellent communication.
Avoided a costly 15,000 euro system overhaul. Pressures aligned well with standard PT chart.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Arrived well-packaged and ready to use.
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22. Clean cylinder with verified pressure.
Avoided a costly 15,000 euro system overhaul. Pressures aligned well with standard PT chart.
Direct drop-in replacement for our legacy R-22 system. No need to change mineral oil, cooling capacity fully restored! Five stars all the way.
Direct drop-in replacement for our legacy R-22 system. No need to change mineral oil, cooling capacity fully restored! Arrived well-packaged and ready to use.
Avoided a costly 15,000 euro system overhaul. Pressures aligned well with standard PT chart.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Fast shipping and excellent communication.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants.
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22.
Avoided a costly 15,000 euro system overhaul. Pressures aligned well with standard PT chart.
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging. Arrived well-packaged and ready to use.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Five stars all the way.
Direct drop-in replacement for our legacy R-22 system. No need to change mineral oil, cooling capacity fully restored!
Tested on an older 10-ton package unit. Running smooth and discharge temps are actually lower than original R22. Clean cylinder with verified pressure.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
Direct drop-in replacement for our legacy R-22 system. No need to change mineral oil, cooling capacity fully restored!
Recharged an older rooftop AC unit. Compressor sounded noticeably smoother within 10 minutes of charging.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Fast shipping and excellent communication.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Clean cylinder with verified pressure.
Avoided a costly 15,000 euro system overhaul. Pressures aligned well with standard PT chart.
We have multiple legacy systems. This blend works seamlessly across both types of lubricants. Five stars all the way.