Hoffman Electrolysis Apparatus, with PTFE Stopcock Includes carbon electrodes in rubber stoppers (X2), platinum electrodes in rubber stoppers (X2), Hoffman electrolysis apparatus, and PFTE stopcocks (X2) Borosilicate 3.3 grade glassware Glassware clearly labeled 2 platinum electrodes included and 2 carbon electrodes included A ring stand and clamp are not included, but needed for unit to function, Eisco Labs Metal ware Set MTST1 is recommended