Elaflex - ERV-DN-150 6" referenced product produced by high technology. ERV-DN-150 6" became irreplaceable of foundations. ERV-DN-150 6" referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. ERV-DN-150 6" referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.