Disposable filter funnels come with washed and weighed .45µm PVDF filter inserted. Filters are washed with ethanol, dried to a constant weight and weighed on analytical balances to nearest 0.1 mg. The weight is printed in standard and barcode format on labels that are affixed to the funnels. Filter funnels comes with caps, supports and pre-inserted filters.

Case of 250 funnels.