We have a Shurflo macerator
We had ours replaced last year along with the two gate valves.
Apparently, they don't last forever and since we have a unit with a built-in hose that just coils out and back into a channel that is only 1 1/2 inches in diameter, the macerator works fine. Plus, we have a small Sprinter van with small tanks.
Dumping the tanks is dead easy on our rig, one of the nicest maintenance feature, I just pull up whip out the hose and it's done fast.
I think the only thing you need to be concerned about is the size of the pump and if it's compatible with your setup.
Don't be too concerned with which one will last longer, eventually, they're all going to need to be replaced, just enjoy your rig.
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