Hafner - MNH 520 701 referenced valve product produced by high technology. MNH 520 701 became irreplaceable of foundations. MNH 520 701 referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. MNH 520 701 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.