USA Made - All R134a is brand new and made in the USA to the highest purity standards. This can be used to recharge 100% of R134a air conditioning systems.<br><br>NEW GAS - ZeroR gas is always brand new and never reclaimed or recycled. We purchase our R134a multiple times per year ensuring you get fresh made refrigerant. Old refrigerants can begin to rust and can cause performance issues if used.<br><br>SSV CANS - Our cans are equipped with the 50 State compliant self-sealing valve design.Now you can easily store partially used R134a cans! Note, older can taps may not work on this valve type and you may need to purchase a ZeroR R134a can tap we guarantee to work with all SSV cans.<br><br>Complies with Section 612 of the EPA Clean Air Act