Product Description: copper material, O/a lg 12 in.; od of flange first end 9.505 in.; flange lg 0.625 in.; od flange other end 8.997 in.; flange lg 2.625 in.; 4.004 in. larger id diminished to 2.404 in. smaller id on two sides; one o-ring groove on other end; first end contains one 0.375 in. drilled thru hole and two 0.750-10 unc thd holes