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Ready To Ship R437a, Aka Mo49 A R12 Refrigerant Replacement, 20 Oz. 1.25 Lbs. Perfect For Gifting [nwZxziYW]

$27.99 $89.99 -69%

REFRIGERANT R437a (MO49) 20 oz. 1.25 Lbs.(1) 20 oz. can, 1.25 Lbs. with a 1/4" male flare hose connection on top of can that also has a internal valve core for self-sealing feature.You can use a regular refrigeration hose (1/4") which is standard, th

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REFRIGERANT R437a (MO49) 20 oz. 1.25 Lbs.
  • (1) 20 oz. can, 1.25 Lbs. with a 1/4" male flare hose connection on top of can that also has a internal valve core for self-sealing feature.
  • You can use a regular refrigeration hose (1/4") which is standard, that has a working valve core depressor.

Or you can purchase a K28 top-mount screw-on can taper for better flow control of the refrigerant gas.

  • If you would like to see or purchase the SF5050 control valve please enter "SF5050" in our store search box and you can view several options of the Sf5050 valve.
  • Shipping is free if added to the order.   
R437A is also known as MO49 a R12 replacement in automotive Air Conditioning and in Commercial Refrigeration Systems.
Up to 11% higher capacity compared to R12
Lower discharge temperature compared to R12
Provides cost-effective retrofits
Refrigerant (R-437A) is A HFC Retrofit Refrigerant For R-12 In Automotive Air Conditioning and Stationary Refrigeration Systems. 

R437a is compatible with traditional and new lubricants;

In Most Cases No Change Of Lubricant During Retrofit Is Required.

APPLICATIONS:

Refrigeration systems designed for R-12, including: Food service Supermarket display cases Food storage and processing Domestic refrigerators/freezers

R437A (refrigerant) is a HFC blend used as a retrofit refrigerant for R12 in medium and high temperature refrigeration such as automotive air conditioning systems.

Product Features & Benefits
Replaces R12 and HCFC containing blends such as MP39, MP66, R409A
Zeotropic refrigerant blend containing R125, R134a, Butane and isopentane
Refrigerant must be charged from the liquid phase to ensure accurate composition

What Our Customers Say

January 16, 2026

Absolutely no complaints!

I'm pleased with this product's very, very superb quality.

- Taliesin S..

January 16, 2026

Absolutely no complaints!

It's a very impressive and a very, very handy device.

- Urien Q..

January 16, 2026

Absolutely no complaints!

This works just like a lovely, great, great little wonder.

- Urien R..

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