Lab folks and researchers, these Cole-Parmer nylon membrane filters are workhorses you'll find yourself reaching for constantly. The 0.45µm pore size is perfect for so many applications - HPLC sample prep, sterilizing solutions, filtering buffers, you name it 100 Pack Nylon Filters Cole-Parmer Nylon Membrane Filters; 0.45µm Pore, 25mm Dia, 100/Pk From Cole-Parmer Filters 25mm Syringe filters have Luer-Lok and Luer-slip connections for easy, quick and tight connections to tubing, syringes, or needles. Filter packs are available in a... Manufactured by cole-parmer, country of origin - India, cole-parmer nylon membrane filters; 0., 45µm pore, 25mm dia, 100/pk., Manufactured by Cole-Parmer Filtro jeringa nylon 25mm 0,45µm Product - Nylon membrane filter