Filter Product Guides and Charts Filter Media Selector Web Page General syringe Filter Selection Help Page. Regenereated Cellulose (RC), Cellulose Esters (MCE), Nylon and nylon low Ext., Polypropylene (PP), Glass Fiber, PVDF (polyvinylidene flouride) and PTFE Membrane. Chemical Compatibility Chart for Membranes (pdf) Chemical Compatibility for Membranes. Find out important compatibility information before you purchase. Membrane Quick Pick (pdf) Quick Pick Guide for selecting your filter Basic Filtration Concepts (pdf) Selecting a filter with the appropriate properties can help you achieve accurate results and reach discovery faster. But with so many types of filters to choose from, how can you be sure you’re making the right choice? Whatman has assembled this compilation of basic filtration concepts and terms to clarify the various options available to you and speed the process of selection. Whatman Products Selection Guide Webpage This is a comprehensive Whatman selection guide that starts with your application and then makes products suggestions. Each product suggestion is linked to a category of products where you can further fine tune your requirements. It is the most complete Whatman filtration device selector on the web.