Disposable, sterile filter units with 90-mm diameter SFCA membrane (57.2-cm2 usable filter area) and low protein binding. Allow easy vacuum filtration of up to 1 liter of media with 20% serum, used in hybridoma research labs. Large membrane surface area and low protein binding provide excellent flow rates and throughput. 1000-ml upper and receiver. 1-1/2-turn threaded screw closure eliminates pH shift in receivers. Side-arm features a cellulosic vent plug and a quick-disconnect tubing adapter. YELLOW collar. Non-pyrogenic.