Single valve lock set (square tongue) Double valve lock set(Square tongue) Single valve Double shutter lock Set(Square tongue) Single valve lock set(Cylindrical) Double valve lock set (cylindrical) Single valve Double shutter lock set (Cylindrical) Single valve Double Shutter lock set (Cylindrical) Single valve Double Shutter lock set (Cylindrical) Single valve Double Shutter lock set (Cylindrical) Single valve Double Shutter lock set (Cylindrical) Single valve Double shutter lock set (cylindrical)