We bought this table because a 20lb propane tank is supposed to fit inside.  With the drop down of the flame tray and the interior height of the tank holder, a standard 18.75lb tank does NOT fit in the Fire Pit Table.  Smaller tanks require a different nozzle connection.   We're having to cut away part of the metal tank support frame in order to get a tank inside.  Wish we had set the table up sooner so we could warn others to stay away from this product.  The 'concrete' look is really just gray paint that has been slopped on the resin material.   This is not worth the $750 we paid.