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R437A (also called MO49) is an HFC retrofit refrigerant for R-12 systems in automotive air conditioning and stationary refrigeration. This kit includes a 16 oz can with a self-sealing 1/4-inch male flare top connection. It offers up to 11% higher capacity and lower discharge temperature than R12, making it a drop-in replacement for older systems. It suits DIYers and technicians servicing R-12 equipment who want a cost-effective alternative.
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Lowest price we've seen: $96.99 on Nov 12 at frosty-freezeacproducts.com. Tracked across 1 store since Nov 12.
R437a, also known as MO49, is a refrigerant for retrofitting R12 systems. It is used in automotive air conditioning and in commercial and stationary refrigeration. This Check & Charge-It Kit includes one 16 oz. can of R437a.
R437a is a zeotropic HFC blend of R125, R134a, butane and isopentane. It has up to 11% higher capacity than R12 and a lower discharge temperature. It is compatible with traditional and new lubricants, and in most cases the lubricant doesn't need to be changed during a retrofit.
Use the R12 scale when reading R437a. Charge it from the liquid phase to keep the composition accurate. The top hose connections are 1/4" male flare with an internal valve core, so they self-seal when the hose is removed.