"THIS ITEM HAS A LIP OR FLANGE AT ONE END THAT IS THE LARGEST OUTSIDE DIAMTER, 2.380; 0.75 INCHES FROM THE LIP IS A STEP IN. THE OD OF FIRST 0.75 INCHES IS 2.188 AND IT STEPS IN TO 2.125 OD. THE STEP IS AT A 45 DEGREE ANGLE. MADE OF CARBON STEEL WITH ZINC FINISH. SIMILAR TO 2590-01-458-2609, P/N 12469073-1, WHICH IS A STRAIGHT TUBE WITH AN OUTSIDE DIAMETER OF 3.625 INCHES, WITH A LIP (FLANGE)."