Whatman* UniPrep* Syringeless Filters

UniPrep syringeless filters are preassembled filtration devices for removing particulates from samples. They replace syringe-coupled filtration devices with single, disposable units. UniPrep devices consist of a chamber and a filter-plunger. The design incorporates a prefilter and a membrane into the tip of the plunger. U.S. Patent Nos. 4,800,020, 4,832,850 and 4,897,193 property of Whatman Inc.