UNUSED 4" Carbon Steel, One lot of misc. pipe flanges and fittings. Contains the following Pieces: Eight 4" 150 lb. weld neck flanges, Four: 4" 150 lb. back up flanges, One 4" weld neck "T", Two 4" stub ends, Two, 3" 304SS 45 degree weld fittings, (0.120 wall thickness).