B2-CR: Chemical Refill Package $217.28 A chemical refill package for Basic Program 2. B2-CR: Chemical Refill Package quantity Add to cart SKU: B2-CR Category: Refills Tag: B2 Description Description A chemical refill package for Basic Program 2. Related products B3-CR: Chemical Refill Package $224.36 Add to cart B2-4: Evolution of Serum Proteins $81.87 Add to cart B2-5: Serum Enzymes and Disease $0.00 Add to cart EP-2P: Polyacrylamide Electrophoresis Package $40.39 Add to cart B1-1F: Chemical Refill for B1-1: Properties of DNA $49.96 Add to cart B4-CR: Chemical Refill Package $218.80 Add to cart