as im sure it would be ok. and i have never said otherwise.
manufacturer suggested flow rate, is not going to be the same as what the product was pressure tested to handle at max capacity. from a business standpoint, its just not smart to suggest you push the product to its limits. however, as i have personally used a much higher flow rate without leaks, i am sure it can handle more than 200gph.
people push the limits of their equipment every day. doesnt mean its a good idea, and im not suggesting anyone run it at 600gph, all i said is that i have personally done it with no problems.
again. youre missing the point. but thats fine. im not going to sit here and argue about it. lol.
if you want to continue the conversation, feel free to PM me, but this convo is getting way off topic.
OP: even the ac50 pushes something like 250gph(?) but is adjustable. and as
tcarswell said, it is compatible with the quickfilter, and those things are awesome. so that will work.
as far as the bulbs go, i would suggest going with OEM parts. im not sure if the one you posted is third party, but the bulb is the part that makes the filter functional, so i wouldnt personally trust that to a third party manufacturer. without the bulb, you just have a hunk of plastic.
best of luck
. Just please research these things and try to make a better decision in the future because your personal experience running it at 600 gph was just silly. 
