FL19620 This Yoke Requires that you use either a Fleck 3/4" or 1" Noryl Yoke, 3/4" or 1" SS Yoke, Noryl Bypass Valve....or SS Bypass valve, in conjunction with it, and is designed to be used on the Fleck 5600, 5000ProFloSXT, 6600, 6700, 2510, 9000-3/4" and the 9100 valves. Supplied with 2ea SS Clips, for easy installation.