Not high pressure, whatever it is. Spring clamps are kinda limited, even under low pressure.

On something like that, I’d use an Oetiker clamp.

Not familiar with later Muskrats, but they don’t use a digital fob?

Edit: Never mind, I looked closer. Seems like a key cylinder.

I wanna know what car still uses drum brakes. I thought they went the way of distributors and carburetors.

Most likely a vac, but I have seen various types of equipment use filters like that. Air compressors, small diesels, generators, pumps, etc etc.