Filtration system

The Nalgene MF75 Filter Units and Bottle Top Filters incorporate the sterilisation-grade Pall Supor machV membrane. The membranes are composed of polyethersulfone (PES), the same material used for processing biological and pharmaceutical samples for drug discovery and basic research.

The three-dimensional, V-shaped structure of the membranes accelerates flow rates up to 50%, while exhibiting low protein binding of cell culture media and other solutions.

The filters allow rapid sterile filtration of even the most difficult to filter fluids such as serum. The filters with 0.2 µm membranes are available in 150, 250, 500 mL and 1 L sizes.

Each filter unit has a side-arm with a cellulose vent plug, a quick-disconnect tubing adapter and a leak-proof threaded closure for the receiver. Graduations are provided on both the upper and lower receiver unit, allowing for easy sample assessment.

The filters are gamma sterilised and individually wrapped in easy-to-open bags.