3″ Valve Flange x 3″ Victaulic® and 3/4″ Drain 500013 3″ valve flange that fits both Akron® and Elkhart® valves. Part No. 500013 Description 3" Valve Flange with 3" Victaulic® connection with .25" FNPT and .75" FNPT port. Fits Akron® and Elkhart® valves. Material Stainless Steel