This inexpensive, re-usable holder is made of clear, autoclavable poly-carbonate and contains a silicone gasket for leakproof sealing. It can be used at pressures of up to 7 bar. It is designed for use with aqueous solutions. Filter supports in the top and bottom parts allow filtration in either direction. The milled edges make hand tightening easy. Specifications for the 13 mm Polycarbonate syringe filter holder