The Vacuum Filter Units a capacity of 250 mL. It is equipped with a neck adapter with a diameter of 50 mm, respectively. The pore size of the polyethersulfone (PES) membrane is 0.22 m. With a disposable design and individual packaging, this product can be used immediately after opening and set up your filtration system swiftly. It can save time for operations and improve experiment or production efficiency. The polyether sulfone (PES) membrane provides more flux and faster liquid flow. It intercepts kinds of particles and impurities effectively and targetedly, finishing precise filtration. Suitable for various liquid filtration scenarios, including laboratory sample processing, this product is also compatible with common vacuum systems. Color: As Shown Material: plastic Package Contents: 1*set filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.