Table 1.

Characteristics of the dialysers

Dialyser	Rexeed-21A®	Theranova 400®
Membrane material	PS	PAES/PVP blend
Surface area (m2)	2.1	1.7
Membrane wall thickness (μm)	45	35
Membrane inner diameter (μm)	185	180
Flux	HF	MCO
β2M (11.8 kD)	0.85	1
Albumin (66.5 kD)	0.002	0.008
UF coefficient (mL/h/mmHg)	90	48
KoA urea (mL/min2)	1569	1482

PS polysulfone, PAES polyarylethersulfone, PVP polyvinylpyrrolidone, UF ultrafiltration, HF high-flux, MCO membrane cut-off, KoA mass transfer area coefficient