Works with the following Honeywell Gas Valves: SV9500 SV9600 SV9600H SV9401 SV9402 SV9403 SV9501 SV9502 SV9503 SV9601 SV9602 SV9500M2603 SV9500M2674 SV9500M2682 SV9501M2528 and more!