Cytiva Spartan 13 mm HPLC-Certified Syringe Filter, regenerated cellulose, 0.45 um, with mini-tip outlet - 100 ea. Specifications. 3546152: 10463030: $265.15: PK: 889-77091: Cytiva Spartan 13 mm HPLC-Certified Syringe Filter, regenerated cellulose, 0.45 um, with mini-tip outlet - 500 ea. Specifications. 3546361: 10463032: $1020.15: PK: 889-78507