Cellulose Acetate Syringe Filters, 0.45 um, 25mm, Double Luer Lock, PP Housing, Nonsterile, 100 per pack, SPEC18168. $98.00 As low as: $74.97. Add To Cart. Cellulose Acetate Syringe Filters, 0.45 um, 25mm, Double Luer Lock, PP Housing, sterile, 1000 per pack, SPEC18173. Regular Price: $1,666.00.