I'm selling the San Juan HE that I used on my 502. It was boiled out, tested and then only used a few times before I pulled the motor. Tank inlet/outlet are 1", raw water outlets are 1 1/4" and raw water inlet is 1 7/8" (but I easily used a 1 3/4").
To be honest, it's not in perfect condition. It has a few dings and an ugly soldering job on one of the inlets, but it's 100% functional. It's also yellow...which you can repaint...but why anyone would want anything but yellow is beyond me.
Thought I'd put it here first before I post it locally. Not sure what shipping would be, but I'll ship from zip 98230 for the US and from Vancouver for Canada.
$100US.
Sorry, but not negotiable on the price as I dropped it to my minimum for the community. I'll easily get $250CDN locally.