This replacement crossover tube is a high quality item that is sourced from original equipment manufacturer for use with Weber gas grills. The carryover tube is secured between two burner tubes to provide extra support for the burners and carry the gas from one burner to the next. Over time tubes may rust or warp, this would generally wou...Read moreld be caused by a combination of heat and moisture usually if the grill is not cleaned after each use. One durable stainless steel crossover tube is included per order.