I’ve got the two stock ballast bags out of my 2015 Mondo Surf edition (like new, were removed the same year as the boat was purchased) as well as one additional bag that we used to place in the floor. The stock bags (black) have two of the fittings factory glued in, the single gray bag’sAttachment 30872Attachment 30873Attachment 30874Attachment 30872Attachment 30873Attachment 30874 fittings are all removable. Gray bag measures roughly 40x18x14.
$100 plus shipping.