GD/X syringe filters are designed to enable easy filtration of samples up to 10 ml. They are available in a wide variety of filter media choices with a polypropylene housing and utilize the most advanced construction methods and design features available today. Whatman 13 mm GD/X syringe filters also contain a unique prefiltration stack of Whatman Multigrade GMF 150 (10:1 µm) and Grade GF/F (0.7 µm) prefilters. Multigrade GMF 150 is a combination of two glass microfiber filters in one. Manufactured from 100% borosilicate glass, its construction consists of a coarse layer on top, meshed with a fine layer below. Grade GF/F filter will retain fine particles down to 0.7 µm. The most popular sizes are listed. Other sizes and/or special sizes are available upon request. Non-sterile.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.