replacement

I was checking my engine bay and i found out this hise was leaking, the problem is i dont know what hose it is so i cant get a replacement

Hi. I need to replace my leaking heater core in my 2011 M16A Swift Sport. If possible, I'd prefer not to remove the whole dashboard. Does anyone have an instruction or something to get just the core out or does the whole plastic module need to come out. It looks like the just the core can come...