Stainless Steel | Hex Reducer Bushings | Compression | Conpression | MIP Threaded | Threaded | 1-1/2" x 1-1/4" | 1/2" x 1/2" x 3/8" | 1" x 1/4" | 2-1/2" | 3/4" x 3/4" x 1/2" | 3" x 1-1/2" | 5" - 3" x 1-1/2"