Sterile syringe filter features a high-quality plastic shell and a unique threaded interface design for secure connection and leak prevention. It is well-constructed and durable. Each batch of membrane undergoes rigorous testing and complies with ISO9001 standards for reliable performance. This sterile polyethersulfone (PES) needle filter includes a hydrophilic PES microporous membrane offering high throughput and low protein binding. Designed with advanced technology, it provides excellent microbial retention and is suitable for a wide range of applications including buffers, proteins, media, additives, and reagents. The syringe filter incorporates a GF pre-filter, enhancing dirt retention and enabling higher throughput, especially for challenging samples, without clogging. Widely used in scientific research, laboratories, medical facilities, and research institutions for small-volume sample filtration, clarification, and sterilization. Features a uniform pore size with a 33mm membrane diameter and 0.22μm pore size. Offers broad compatibility for filtering solutions such as cell culture media, buffers, and sterile reagents. Material: Plastic. Color as shown. Package includes: 10-pack sterile syringe filters. Other items not included. Note: Lighting and display differences may cause slight color variations. Measurement tolerance: +/- 1-3cm.