Whatman 6874-1304 GD/X 13 mm Syringe Filter, PTFE filtration medium, 0.45 um 150-pk

Constructed of a pigment-free polypropylene housing with a prefiltration stack of Whatman GMF 15 (graded density) and GF/F glass microfiber media. These Filters greatly reduce the need to carry out separate prefiltration step with difficult to Filter samples and allow you to Filter difficult samples with less hand pressure. GD/X Syringe Filters can process three to seven times more sample volume than standard syringe Filters.

GD/X Filter construction facilitates exceptional loading capacity with fast flow rates. This prevents the build up of backpressure typically caused by the blocking of an unprotected membrane.

Features:

• 13 mm devices for samples up to 1 ml and 25 mm devices for samples greater than 1 ml
• High efficiency prefiltration stack of Whatman GMF 15 (graded density) and GF/F glass microfiber media.
• Filters greatly reduce the need to carry out separate prefiltration step with difficult-to-Filter samples.
• Requires less hand pressure, even with the most difficult samples.
• Processes three to seven times more sample volume.