Fast, efficient, and convenient sample clean up vials from Finneran. Made of polypropylene, 12mm x 32mm, vial for sample volume less than 450μL. Without hold-up volume vials forces filter to engage with entire sample. Leaving minimal residual sample in bottom of vial. Filter material options include Mixed Esters Cellulose, PVDF, Nylon, PTFE, Polypropylene, Regenerated Cellulose Acetate, Polyethersulfone, and Glass Fiber. Vial assembled with slit PTFE/Silicone lined yellow 11mm polypropylene snap cap.