25mm 0.45um PP Syringe Filter for Gas Exchange EXW -PP Syringe Filter-Syringe Filter-Lab filtration - Supplier of • Available in 13, 25mm sizes so that you can pick the size that’s right for your application and minimize precious sample loss • Wide range pore sizes 0.1um, 0.22um, 0.45um, 0.8um, 1.0um available, especially 0.45um for the