Tisch Scientific Cellulose Acetate (CA) Syringe Filter, 0.45 µm, 25 mm, Luer-Lok/Luer Slip, Nonsterile, 100 Pack, SF14488. Regular Price: $100.20. Price $88.58. As low as: $79.72. Add To Cart. Tisch Scientific Cellulose Acetate (CA) Syringe Filter, 0.45 µm, 33 mm, Luer-Lok/Luer Slip, Nonsterile, 100 Pack, SF14490.