Acrodisc Syringe Filters with Nylon Membrane, 13 mm, Minispike 4550 0.2 µm, minspike outlet 100/pkg 300/cs NA 0 4561 0.2 µm, minspike outlet 1000/pkg NA 0 4551 0.45 µm, minspike outlet 100/pkg 300/cs NA 0 4546 0.45 µm, minspike outlet 1000/pkg NA 0 Acrodisc Syringe Filters with Nylon Membrane, 13 mm