Ahlstrom Grade 141 Glass Fiber Filters
Ahlstrom Grade 141 Fast Speed Glass Microfiber Filter Paper. Grade 141, 3.1µm -
Fast Speed offers better filtration speed and a higher loading capacity
than an analytical filter paper of similar particle retention.
Particularly recommended for pre-filtration of membrane filters and is
also used in combination with Grade 121 as a highly efficient protective
and retentive grade density pre-filter for membrane filters.