Mine's a Frigoboat by Veco, but that doesn't matter, because it's made entirely from standard parts, those being a Danfoss/Secop BD35 compressor, matching controller from the same manufacturer and the fans are bog standard industrial fans like those used to cool computers. They're widely available and come in standard sizes - either look up the spec of the original fan from the label or just measure the size. Only interesting bit is that they're 24 V fans on a 12 V boat - but as they're hooked up to the fridge controller, it may well be that the voltage is stepped up there (or they simply run slower/quieter).
