ComStar has the lowest GWP, non-flammable retrofit refrigerant replacements.

ComStar proudly introduces state-of-the-art, ultra-low GWP refrigerants to replace R404a, R507 and R410a in EXISTING systems.

ComStar’s RS-51 (R470B) has a GWP of 717 which is 80% lower than R404a, R507 and half of R448A and R449A. Additionally, RS-53 (R470A) is the world’s only drop-in retrofit replacement for existing R410a systems. At 909, RS-53 has a GWP that is effectively 56% lower than R410a.

Both RS-51 (R470B) & RS-53 (R470A) are EPA SNAP approved and are A-1 ASHRAE certified as non-flammable and non-toxic.

By replacing R404a, R507 and R410a systems with RS-51 and RS-53, your company can efficiently meet state and federal government regulations, reduce its carbon footprint and Greenhouse Gas (GHG) emissions.

RS-51 (R470B)

RS-53 (R470A)

ComStar’s retrofit replacements are safer

ComStar’s RS-51, which can replace R404A and R507, and RS-53, which replaces R410A, are EPA SNAP-approved and A1 ASHRAE certified. That means they are not flammable or toxic!