Unless you are sure that the new tank size will fit into the location, it is a good idea to make a full-scale cardboard mock up of the tank and put it in place. There is nothing more frustrating than to get a new tank and not be able to fit in place because it is a bit too large. The mock up can be pieces of cardboard duct taped together at the seams. Make sure to mark the locations of the inlets, outlets, vent and possible the location of the access port.
It is important that you are able to get the full size mock up out of the boat. Sometimes you underestimate the cabin opening and the new tank cannot fit in the boat.
If you are shipping the mock up to us, please mark the adjoining pieces at the seams – “A,A” – “B,B” etc. and then take a picture of the tank. You can now cut the tank at the seams and lay it flat and package it for shipping to us at any of our locations.