Our All-PEEK, Bottom-of-the-Bottle Inlet Solvent Filter Assembly (Small Neck) is the most recommended filtering unit designed. It's 100% PEEK construction delivers excellent chemical resistance and is specifically designed to be inert to most solvents. Our Filter features a bottom frit that will draw solvents to within .080" of the bottom of your solvent bottle. It is for small-neck (GL-38 bottles), has a porosity of 2µm and is for 1/8"OD tubing. This easy to operate filter requires no fittings.