The present invention relates to a sterile solution product bag comprising: a bladder； a stem having an inlet end and an outlet end, the outlet end of the stem fluidly connected to the bladder； and a filter disposed in line with the stem, the filter having a filter membrane with a nominal pore size in a range of approximately 0.1 µm to approximately 0.5 µm, wherein the bladder comprises a plurality of bladders fluidly connected to one another at least partly by tubing, the stem and the filter being fluidly connected to the tubing and the plurality of bladders for filling the product bag.
