The Hobart 1929800 Safety Valve W/Magnet Head is a gas control component used in compatible commercial cooking equipment to help regulate and protect the system. Featuring a 1/4" compression tube connection and 3/8" NPT threaded inlet, it opens or closes in response to changes in system pressure, helping prevent unsecure pressure build-up or erratic gas flow. The magnet head design as... https://www.partsfe.co.uk/hobart-1929800-3-8-npt-safety-valve-w-magnet-head