VWR® Glass Fiber Filters. Supplier: VWR International. Description: Binder-free VWR® glass fiber filters feature fast flow rates, high-loading capacity, wide thermal tolerance, and excellent precipitate retention. Certificates. ,28333-139PK,28297-974PK,28297-289PK,28297-978PK,28333-129PK,28333-133PK,28297-984PK.