Description:
Cytiva Whatman 6993-2504 GD/XP 25mm x 0.45µm DpPP (Depth PP Membrane Filter) Syringe Filters with PP Prefilter, 1500/pack. The prefilter contains a high-efficiency borosilicate glass filtration stack that will retain fine particles down to 0.7 μm, allowing difficult sample filtration with less hand force. It reduces the need for multiple syringe filters by processing three to seven times more sample volume than syringe filters without prefilters. The filters can be autoclaved. 1500/pack.