Filter Clamp, For Vacuum Type Shop Vacuum, Fits Vacuum Brand Nilfisk, Fits Vacuum Models 1-S2N1, 1-S2N1A38KT, 1-S2N1A50KT, 1-S3/100N1, 1-S3/100N1A, 1-S3/50N1, 1-S3/50N1A. This item has been restricted from sale in the following state (s): []