Whatman Grade GF/A Glass Microfiber Filters Whatman. Combining top-notch and uncompromising quality with an affordable price the Whatman Grade GF/A Glass Microfiber Filters Whatman 1820-047/ 28497-153 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Used in biochemistry for the filtration of precipitated proteins cells and cell debris. An ideal filter for radio-immunoassay of weak beta emitters by scintillation counting. A standard for gravimetric determination of airborne particulates. Binder free. Specifications for Whatman Grade GF/A Glass Microfiber Filters Whatman 1820-047 : Size cm: 4.7 dia. Whatman No.: 1820-047 Unit: Pack of 100 Porosity: Fine Flow Rate: Fast Particle Retention: 1.6 m (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Whatman products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Filters with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Whatman Filters. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the Whatman Grade GF/A Glass Microfiber Filters Whatman 1820-047/ 28497-153 we carry a full complement of Filters as well as other product offerings from Whatman. We also carry a full line of Whatman accessories to help meet your laboratory and scientific needs. For a complete selection of Whatman Filters please visit our Whatman page. For more brand name Filters please visit our Filters store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Whatman Grade GF/A Glass Microfiber Filters Whatman 1820-047