Sunford SFG14L is the multiple use dialyzer . Its surface are is 1.4sq.m2 which gives the best dialysis in its class. You are worry free when you use this dialyzer. The material used in this dialyzer is Polyethersulfone. With this dialyzer you can do dialsis upto 13 times with one dialzer. The sunford dialyzer are made with the patient care in mind and for that it never cause any harm to the patient.