Check the listing for details. Envirosafe R134a Replacement Refrigerant, Auto A/C case of 12. Condition: New. Listed at 109.00 USD. DO NOT USE IN AMMONIA SYSTEMS!DO NOT PULL A VACUUM ON THE A/C SYSTEM.If you plan to pull a vacuum or are charging a larger system or dual air system such as on a van, suburban, or SUV, use Enviro-Safe Industrial Enviro-Safe 134a Replacement with Dye can be used in all 134a applications, including pre-1994 automotives that have complied with the US EPA Snap regulation. Bring your a/c performance back to the original cold air!This is the original Enviro-Safe Refrigerant that we first introduced over 20 years ago.1 can of Enviro-Safe 134a Replacement refrigerant is equal to 1lb of R134a.Operates at lower head pressureIf you use the 134 Replacement with Dye, you cannot pull a vacuum because the product comes in a less expensive can to keep costs lower for the customer.If you are charging something like a dual air system in an SUV, you need to use the Industrial 134 replacement.Offers improved cooling properties and performanceCompatible with most refrigerant oilsNon Ozone depletingNon Global warmingR134a can threadUse up to 60% LessMade in America!Enviro-Safe has been manufacturing hydrocarbon refrigerants for over 22 years. Flammable to an open flame or spark and proceed with caution if used in systems designed for non-flammable refrigerants.DO NOT USE IN AMMONIA SYSTEMS!DO NOT PULL A VACUUM ON THE A/C SYSTEM.If you plan to pull a vacuum or are charging a larger system or dual air system such as on a van, suburban, or SUV, use Enviro-Safe Industrial Enviro-Safe 134a Replacement with Dye can be used in all 134a applications, including pre-1994 automotives that have complied with the US EPA Snap regulation. Bring your a/c performance back to the original cold air!This is the original Enviro-Safe Refrigerant that we first introduced over 20 years ago.1 can of Enviro-Safe 134a Replacement refrigerant is equal to 1lb of R134a.Operates at lower head pressureIf you use the 134 Replacement with Dye, you cannot pull a vacuum because the product comes in a less expensive can to keep costs lower for the customer.If you are charging something like a dual air system in an SUV, you need to use the Industrial 134 replacement.Offers improved cooling properties and performanceCompatible with most refrigerant oilsNon Ozone depletingNon Global warmingR134a can threadUse up to 60% LessMade in America!Enviro-Safe has been manufacturing hydrocarbon refrigerants for over 22 years. Flammable to an open flame or spark and proceed with caution if used in systems designed for non-flammable refrigerants.