Polyflux L is a capillary filter of low passability with a synthetic membrane of alloy Polyamide, Polyaryl ether sulfone and Polyvinylpyrrolidone (PolyamixTM) suitable for classic hemodialysis. Available on a membrane surface of 1,4m2 with coefficient Kuf: 7,1ml/mmHg/h/1.0m² , 1,7m2 with coefficient Kuf: 7,4ml/mmHg/h/1.0 m² and 2,1m² with coefficient Kuf: 7,1ml / mmHg/h/1.0m². A steam sterilization procedure has been followed.