NORRES partners through our range of environment solutions can have faith in our PRO₂AIR Pre-PUR^® membrane tube diffuser sleeves to last a long time. As a leading hose manufacturer with a tradition NORRES is now able to supply the PRO₂AIR Pre-PUR^® - membrane tube diffuser sleeves in lengths according to individual customer requirements. Thus more customers are able to benefit from considerably lower degrees of pressure loss and much lower energy costs.