How much compressed coco coir?

Hello everyone I just ordered the 25litre autopot with a 47 liter res. Was hoping to grow a mommy in there. The pot is 25 litres and the site recommends 50% coco and 50% perlite. Any ideas how much coco coir that is? It seems to come compressed.

12.5 liters, lol about 1/2 cubic foot of each. not 100% on coco brick to expanded volume (may very brand to brand) but i would say a 1kg brick should do it. or buy a premix that is already coco/perlite.