PSF (polysulfone). Eliminate the need for a manifold and / or breakable glass vacuum flask. Receiver is graduated. Two side arms allow connection to vacuum line; also accept syringe filters. Unbreakable, transparent, autoclavable. For filters 47 or 50 mm Ø. PSF (polysulfone). Eliminate the need for a manifold and / or breakable glass vacuum flask. Receiver is graduated. Two side arms allow connection to vacuum line; also accept syringe filters. Unbreakable, transparent, autoclavable. For filters 47 or 50 mm Ø.