Subwoofer driver chassis is STANDARD. If different manufacturer's say 10 inches, all brands will be inter-changeable... as chassis, diaphragm and foam ring etc are all perfectly fitting to each other for a given size of driver.
Coming to your question, overall diameter is 10 inches.
We are also providing Air sealing gasket and mounting screws with all drivers, at throw away prices.
TS parameters of this particular driver ?
What are the Overall dimensions like diameter, depth etc of this FRD10.4-LR/10 Low Rider Shallow mount subwoofer?