Closed-end style side-discharge filters are used with sock filters rather than tubes, which has several advantages. "Blow-By" is eliminated even with large pump systems, sediment leakage is reduced, and installation of new filters is easier. Closed-end style filter comes complete with stainless steel body, insert and clamp and rubber O-ring, tab, and gasket. Uses 4-7/8" x 33" FiltersFor use with 1-1/2" milk line.