Cellulose Acetate CA Syringe Filters, 0.45 um, 13mm, Luer-Lok/Luer Slip, Sterile, 100 per pack, SF14492. Regular Price: $92.56. Price $80.49. Add To Cart. Cellulose Acetate CA Syringe Filters, 0.45 um, 25mm, Luer-Lok/Luer Slip, Sterile, 100 per pack, SF14494. Regular Price: $127.33.