Case of 12 cans - REDTEK A/C Refrigerant (6 Ounce Cans) NEW LABEL, SAME GREAT PRODUCT!!! RED TEK A/C Refrigerant, a HC-based refrigerant, is a blend of environmentally safe hydrocarbon fluids designed as a R134a replacement option in automotive air conditioning and refrigeration systems. It operates at lower head pressures and offers improved cooling properties and performance verses R134a. IMPORTANT INFORMATION: THIS PRODUCT CANNOT BE RETURNED TO AMAZON BECAUSE IT USES FLAMMABLE GASES AND LIQUIDS, IS CLASSIFIED AS HAZARDOUS MATERIALS, OR MEETS OTHER CRITERIA. RED TEK A/C Refrigerant can be used in all R134a applications, including pre-1994 automobiles that have complied with the USEPA Snap Law..