From time to time, I use a pumpout where the attendant does not have the pumpout adapter to fit my boat. As a result I tried to order one from WestMarine but it did not fit. SeaLand makes a 1.25 inch adapter but it is 16 threads per inch; I think the Hunter 260 is 1.25/11.5 threads per inch.I know these adapters exist since almost all the pumpouts I use have the correct adapter. I guess I could make an adapter for the adapter so it would fit, but I really would like to find the size that works.Any help is appreciated.