Quick view Eddington Eddington Threaded Orifice Unions MSRP: K442.19 - K638.22 Model Number Description OU-050 1/2" Threaded Orifice UnionComes with two orifice plates, .062 dia. & .250 dia. OU-0 MSRP: K442.19 - K638.22 Quick Add Add to Wish list Compare