Ahlstrom 111 Glass Fiber Filters

These glass fiber filters are made of 100% pure borosilicate glass with no added binders. They have fast flow rates, fine particle retention and excellent loading capacity. Very resistant to most acids and alkalis, will not denature biological fluids and can be used at temperatures to 500°C. Used for chemical analysis of water and waste samples. Retention rating 1.2 µm. Equivalent to Whatman GF/A.