PTFE Syringe Filters Hydrophilic, 5 um, 25mm, Double Luer Lock, PP Housing, sterile, 1000 per pack, SPEC18159. Regular Price: $2,650.00. Price $2,385.00. Add To Cart. PTFE Hydrophilic Syringe Filters, 0.22 um, 20mm, Threaded Double Luer Lock, ABS Housing, Nonsterile, 100 per pack, SPEC18160.