Precleaned Volatile Organic Analyte, VOA Sampling Vials, Restek. Supplier: RESTEK CORP. Description: Precleaned volatile organic analyte sampling vials are cleaned and assembled before delivery, and are lot traceable for guaranteed quality. ,10854-098PK,10854-100PK,10803-258PK,10803-256PK,10854-102PK,10015-256PK,10015-438PK.