Advantages of Continuous Slotted Screens compared to other types of screens: 1. Each intersection of Vee-wire and support bar is welded to produce an extremely strong structure. 2. Continuous slot screens have outwardly enlarging slots which allow only two-point particle contact. Smaller particles pass freely through without plugging. 3. Smooth wire surface and vertical slot orientation allow the catalyst to move vertically against the screen face without being abraded.