25 lbs.

25 lbs.

125 lbs.

125 lbs.

1,000 lbs.

1,000 lbs.

For systems using R404

RS-50 (R-442A) refrigerant is compliant with the new European regulations due to its low global warming potential (GWP). At a GWP of 1888, RS-50 is less than 50% compared to R-404A and R-507. Additional advantages when compared to R-507, R-404A and the other HFC solutions currently on the market are:

  • RS-50 has up to 30% higher cooling capacity compared to R404a
  • RS-50 offers a much better coefficient of performance (COP) at low temperatures
  • The heat exchangers have better heat transfer, reducing the operating time
  • of the compressors
  • Energy savings from RS-50 lead to quick return of investment
  • Current system owners have already seen energy savings of approximately 25%

The systems that were originally designed for or converted to the refrigerants R-404A, R-507, R-407F, R-407A, can easily be replaced by RS-50, with no important modifications necessary. This is a “drop-in” direct conversion, without changing the type of oil or any of the main components. The only modifications necessary are:

  • Adapting the temperature of the set points to RS-50
  • Changing the aperture of the expanson valves, due to mass flow of RS-50 being 40% lower than R404A

RS-50Downloadable Info

Refer to our FAQ page for more info

Dear Customer,

We appreciate your interest in our effective and innovative ComStar products.

As of January 1, 2018, The U.S. Environmental Protection Agency (EPA) requires all buyers of refrigerants that contain CFCs, HCFCs or HFCs to be certified technicians.

You will be asked to complete this short form and upload your technician’s certified ID to complete your order in the cart.

Thank you!

Comstar International Inc.

Refrigerant Purchase Certification Form

The U.S. Environmental Protection Agency places restrictions on the purchase of Class I, Class II, and other regulated refrigerants. In order for purchases to be made, the purchaser must certify to one of the following: