Acrodisc Syringe Filter with Versapor Membrane 0.8um pore size. 25mm diameter. Cell cultures other biological applications. Luer-Lok design. Large-pore Versapor acrylic copolymer membrane. Withstands 75psi. 55[degree]C maximum. Nonpyrogenic. Individually wrapped. Nonsterile. 75/pk 300/cs.