USA Made - All R134a sold from this listing is made in the USA. Purchasing USA made refrigerants guarantee purity standards that will keep your A/C working for a long time. NEW GAS - We purchase our R134a multiple times per year ensuring you get freshly made refrigerant. Old refrigerants can begin to rust if there is any moisture present which is bad for your AC system. SSV CANS - Our cans are equipped with the 50 State compliant self-sealing valve design.Now you can easily store partially used R134a cans! Complies with Section 612 of the EPA Clean Air Act Returns: This item is considered a HazMat Material and as such is not returnable. It requires hazmat certification to ship. Amazon does not supply a Return label and the seller will not supply return labels for this type of products. Please contact seller for any help you might need in using the product.