"ALUMINUM,3.188 IN. O/A LG,4.438 IN. OD. LARGE END,2.406 IN. OD. SMALL END,WITH 1 HOLE 1/2-20 UNF FEMALE,O RING RUBBER 0.063 IN. BY 0.344 IN. ID. BY 0.531 IN. OD. O RING 0.063 IN. BY 1.938 IN. ID,BY 2.063 IN. OD. 2 FELT STRIPS 0.125 IN. BY 0.250 IN. BY 5.375 IN. O/A LG"