The Bull BBQ (16526) replacement rear infrared back burner valve for gas grills is constructed of durable cast stainless and fits all Bull BBQ gas grills with infrared rear rotisserie burners (any size). To install, simply detach control panel, unscrew the current rear burner valve and replace with new. The valve includes gas valve and brass clamp to attach to the gas manifold. Installation takes less than 15 minutes.