Nylon, PTFE, PVDF, PES, cellulose, PP, GMF syringe tip and membrane filters for sample preparation of HPLC, UHPLC, GC etc. devices. Millipore SLCR025NK PTFE Hydrophilic Millex-LCR Non-Sterile Syringe-driven filter units, non-sterile, specifically developed for sample preparation before instrumental analysis.