1. Anode Buffer Container (ABC) 3500 Series (4 pack) - 8 bal. 2. Cathode Buffer Container (CBC) 3500 Series (4pack) - 8 bal. 3. Septa Cathode Buffer Container (for the 3500 series; 10 each) - 5 bal. 4. Conditioning Reagent, 3500 Series - 6 bal. 5. POP-4 Polymer (for 3500/3500xL Genetic