Radiation-sterilised polystyrene housing with tissue culture grade nylon membrane, which has low levels of extractables (less than 0.5% by weight), is naturally hydrophilic, contains no wetting agents and is alcohol resistant. Has graduations on both the uppers and receivers, and incorporates a side arm with cellulosic vent plug and quick-disconnect tubing adapter. Membrane pore size and material are clearly marked on the red collar.
Tubing of 6-7mm inner diameter is required to connect the filter unit to a vacuum pump.