Freon Refrigerant - NU-22B 25lb (R-22, R-422D, R-407C, R-417A Replacement) If your system currently uses R-22, R-407C, R-422D, or R-417A, NU-22B offers an eco-friendly, direct replacement with no retrofit or oil change required. Simply evacuate the old refrigerant and recharge with NU-22B. Key Features Seamless Replacement: No retrofit required, making it simple to switch to NU-22B. Ease of Use: Just evacuate the existing R-22 and replace with NU-22B, suitable for both new and existing R-22 residential and commercial air conditioning systems, as well as non-flooded evaporator chillers. Note: Cannot be mixed with R-22; a complete evacuation is required before recharging. Why Choose NU-22B? Performance: Closely mimics R-22 operating characteristics, offering high performance for OEM and service replacement needs. Compatibility: Works with all standard oils, equipment, and materials used in R-22 systems no need for specialized tools or supplies. Safety: Classified as non-flammable and non-toxic (ASHRAE A1) with zero ozone depletion potential (ODP), making it a safe and responsible choice. NU-22B Facts: ASHRAE designation: R-422B Safety Classification: A1 Zero ODP (ozone depletion potential) Higher capacity than R-417A at R-22 operating pressures NU-22B has proven its reliability in thousands of installations worldwide, giving you the confidence of quality and safety. !!!!!!!!!!! PLEASE SEND YOUR INQUIRY FOR OUR BEST PRICES!!!!!!!!!!!!!!