Replaceable solvent Inlet filters are designed with the Inlet tube at the bottom of the filter allowing filters to draw solvent to within 0.06 inch of the reservoir bottom. Reusable filter assembly features replaceable filter cups. Simply change the filter cup by loosening lock nut and removing old filter cup. Assembly's wetted parts are PEEK nuts and tefzel seals. Order replacement 316 SS cups under accessories. Filters work with 1/8 inch or 3/16 inch OD tubing.