Consumables Kit B - # CMFKB: Consumable materials for membrane filtration for E. coli and coliforms with Coliscan MF. Kit includes: 2 bottles Coliscan MF medium, 20 membrane filters (47 mm), 20 dishes with absorbent pad (50 mm), 1 Instruction page and 1 Colony Color Guide. Medium storage: Freeze. Medium shelf life: 1 year.