I was able to confirm from Dessalator the the pump for my model (180 l/hr, 220 VAC, 50 Hz) water maker is indeed the CAT model 277 pump.
Thanks for you early on help with this. I emailed Dessalator at the same time I posted my question on the forum and your reply was days ahead of the manufacturer. But two positives, at least Dessalator replied and (bonus) their information agreed with yours.
