I have one of these somewhere -
It was given to me, 2nd hand. I was considering exactly as you, putting it inline on the suction side of the mono.
I think the worst of the BCBs will get caught on the plastic frame. I cant recall what the inner is like.
Ive been looking about for an inline filter that is more like the things you get on swimming pool pumps -
I think that would be ideal. A 'basket' where the crud went into the inside. The massive advantage of those is that the bore is so large that the velocity is low, and the large parts would layer up at the base, so increase time between cleaning.
I did find an inline version, but they wanted £70 for it.
I was trying to find the enclosures that filter bags are supposed to go into, as i think that could be a nice idea also, but i wasnt too sure what i was looking for.