If you live in the US then please send me an email with what you would like to order and it will be manually filled due to the tariffs. If you live in Europe, depending on the country, there might be extra tariffs after you have placed your order. We will contact you if there is and you can decide if you still want the item.
This is the diaphragm for behind the face plate. Make sure you put this back together in the correct order. It will work in the incorrect order until you are working hard. It could fail at that point.