Filter: As you're looking at the photo, have the wrench handle pointing to the right and pull it to the left - counter clockwise, or anti-clockwise as our British cousins say. It is a standard RH thread, like all filters I'm aware of. If it doesn't want to unscrew with the filter wrench, try a big pair of water pump pliers if you have them. Failing that, you can take a sharp cold chisel and work at the crimp seam where it meets the filter housing. Note: you're not trying to cut the filter loose - the chisel should be placed on the crimp and angled so that a hammer blow on the chisel will make the edge dig in a bit and turn the filter. So the chisel should be angled from the right to the left and you're shoving the filter to the left when you strike it. You don't beat **** out of it, either. Do it in one spot with a couple or three moderate hits and then move to the right an inch and do it again. Go as far around the crimp as you can reach until it starts to move and then use the wrench. Far more than just one way to undress a feline, eh?
That hose is a fuel line, not air. Maybe the return-to-tank line. It will have fuel in it, but not at injector pressure, just lift pump pressure. I'd pickup a piece of braided fuel hose at the auto supply and replace it - it's cheap. Chinese rubber doesn't seem to hold up well, for some reason, with the exception of tires which are generally okay. Radiator hoses, fuel hoses, air lines, they all crap out sooner than American-made stuff, but replacement hose is easily available. For shaped radiator hoses, take the old one with you and find one that has the right configuration - doesn't matter if its too long, you just cut out the section that matches what you have and you're good to go.