The Imperial 37188 Orifice Holder helps provide controlled LP gas delivery for compatible commercial cooking equipment. This brass orifice holder is a gas-flow component designed with a 3/8" CCT connection and 3/8"-27 thread to securely position the hood orifice within the appliance’s gas system. It works by holding the LP hood orifice in the proper location, allowing gas to pass thro... https://partsfe.ca/orifice-holder-38-cc-x38-27-for-imperial-part-37188