Membrane Filter Holder Assembly with Silicone Rubber Fittings provides vacuum filtration of tissue culture media, components, biological fluids, HPLC and other aqueous solutions. The Membrane Filter Holder Assembly is designed to maximize flow and reduce foaming and protein de-naturation. The Membrane Filter Holder Assembly comes with a funnel capacity of 35/ 50ml to 300ml. Membrane Filter Holder Assembly with Silicone Rubber Fittings are made from durable glass that ensures long lasting service.