Zerol refrigeration oil is a high-quality, premium synthetic alkyl benzene refrigeration oil. It is similar in many ways to natural mineral oils but has superior properties that make it particularly valuable in refrigeration, air-conditioning applications. particularly those using R-22 or other HCFC service blend refrigerants.

Nu-Calgon Zerol Alkylbenzene Refrigeration Oil, Model: 300, 1 gal Net Content, Liquid, Clear, Composition: Synthetic Alkylate(s), 55 cSt Viscosity, 180 deg C Flash, 0.87 Specific Gravity

• It is highly recommended by refrigerant and compressor manufacturers for use with the HCFC blends such as R401A and B, R402A and B, R403B, R408A and R409A as it provides many distinct advantages: excellent miscibility, excellent thermal stability, compatibility with mineral oils
• It is the oil of choice for R-22 and R-502 and excellent clean-up/flushing oil
• -33 deg C pour point