**Minimum 2 pks per order** 11 cm / Grade 934-AH Glass Microfiber Pads (100/Pack) DSC GLASS FIBER FILTERS for TSS, TS & TVSS TESTING DSC is a supplier of Whatman Grade Glass Fiber filter paper for suspended solids tests used in municipal and industrial wastewater treatment laboratories. Our filters are made of binder-free glass fiber material for collection of finest suspended solids with "fast" filtration characteristics and excellent loading capacity. DSC prices represent a substantial savings to your consumables budget. Lowest Prices Anywhere for Glass Fiber Filters