Gas Distribution & Regulator Assembly, Expedite, Since this is an exchange item you must return your old item complete with all components. In addition, the defective item you send us must only have damage that is a result of normal use. Do not disassemble the item. Do not attempt to fix the item. Do not disassemble and then reassemble the item. If you do not return your item or you return it missing components, with damage other than normal wear, disassembled, or in any way not reusable, you will be charged as though you purchased a Non-Exchange item. If you do not want to send your old item back to us, you should purchase this same item as non exchange from us. If the defective item is not returned to us within 2 weeks after we ship the exchange item to you, we will bill you for the new item without exchange. We offer item exchange to keep the price down and to recover high value, reusable parts. If you render the item unrebuildable or unusable it has no exchange value. Help us to be able to continue to bring you exchange items.