Product Description
. . . . . Johnson Controls Y90HA-7718 1/4" CC Extended Inlet Fitting w/ .018" Orifice (NG) - The Y90 inlet fitting controls the flow of gas to a pilot burner. The orifice hole size and counterbore/coining, along with the applied gas pressure, determine flame size and characteristics.. Johnson Controls. Johnson Controls. Y90HA-7718.