Disposable, sterile PVDF membrane units designed to provide clean filtrate from small volumes up to 100 mL. Whatman™ Uniflo™ non-sterile Polyvinylidene Difluoride (PVDF) syringe filters are disposable filter units that are designed to provide clean filtrate from small volumes up to 100 mL. 0.2 μm or 0.45 μm pore sizes Laser etched printing on the filter for easy identification Bench top space saving packaging Recyclable after use. Learn how you can recycle it Sterile versions available as well