Hello everyone! New to this page but anyways I have a 2005 Volvo s40 and I need to change one of the heater hoses and the hose that I need to change is the bottom right of the heater hoses. I’m just not sure which is the outlet or inlet? Or what’s the position of the bottom right. Thank you! Please reply asap!

 

If it's a question about which to order, the right answer is "both". If one has failed (it's 15 years old, after all) replace both of them while you're in the area so you don't have to dink with it a few months / years from now.