B2-CR: Chemical Refill Package $166.17 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 B2-3: Proteases and Factors that Influence Enzyme Activity Read more EP-2P: Polyacrylamide Electrophoresis Package $30.88 Add to cart B2-5: Serum Enzymes and Disease Read more B3-CR: Chemical Refill Package $171.59 Add to cart B1-1F: Chemical Refill for B1-1: Properties of DNA $38.20 Add to cart B2: Animal Biology and Evolution $220.28 Add to cart