Specification Brand : ProTech BulletPoint1 : Restore Original Cooling: Bring your A/C performance back to its original cold air state. BulletPoint2 : Established Product: This is the original Enviro-Safe Refrigerant introduced over 27 years ago. BulletPoint3 : Equivalent Efficiency: 1 can of Enviro-Safe R134a Replacement refrigerant equals 1lb of R134a. BulletPoint4 : Lower Head Pressure: Operates at lower head pressure for improved efficiency. BulletPoint5 : Improved Cooling: Offers improved cooling properties and performance compared to standard refrigerants. BulletPoint6 : Made in America. Color : Clear ExternallyAssignedProductIdentifier1 : 0662766360547 ExternallyAssignedProductIdentifier2 : 662766360547 IncludedComponents : 3 Cans ItemName : Nu-Calgon Freez-Kontr'l Bottle - 1 gallon #4188-07 ItemPackageDimensions_Height : 10 inches ItemPackageDimensions_Length : 10 inches ItemPackageDimensions_Width : 10 inches ItemPackageQuantity : 1 ItemTypeKeyword : automotive-air-conditioning-refrigerant Manufacturer : Enviro-Safe Refrigerants Material : Lead ModelName : R134a Replacement ModelNumber : REF3 NumberOfItems : 4 PartNumber : 4188-07-01T00:00:00 ProductDescription : Rheem/Protech 4188-07 - Freez-Kontr'l Bottle - 1 gallon - Rheem/Ruud/Protech - A complete line of OEM and factory replacement parts for your furnace; air conditoner; water heater; air handler; boiler; rooftop unit and more. ProductSiteLaunchDate : 2012-09-14T17:14:41.716Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 24122000