Looking for a heavy-duty 1/4" brass solenoid valve that can take a beating? This SMC 1/4" Electric Air Valve is an industrial-rated valve constructed with high-quality heavy-duty brass components to ensure continuous use through extreme conditions. Unlike other valves, the SMC 1/4" Valve is designed to be used as both an industrial air or water valve. The SMC 1/4" Valve includes a mounting bracket and hardware.