When we bought our boat the port-a-potti was missing. In looking at the ads to purchase one I see there are different sizes. In looking at pictures of boats on Boat Trader I have seen pictures showing the Dometic brand but that is as close as I got. There is a stainless steel bracket in the boat but I have no idea what the brand or model of hold-down bracket it is. Our boat is a 2004 year model 205 Tournament. If anyone knows what model toilet and bracket I need, I would sure appreciate the info. Thanks