Liquid Scintillation Vials, PET, with Screw Cap, Wheaton. Supplier: DWK Life Sciences (KIMBLE) Description: PET (polyethylene terephthalate) plastic vials offer the clarity of glass and the waste disposal advantages of plastic. Certificates. ,66021-735CS,66021-736CS,16300-241CS,16300-240CS,66021-737CS,16300-235CS,56947-382CS.