I'm currently building a 55 gallon sump For my 180 but I'm still figuring out my plumbing I didn't really want to drill a hole in my tank and I was luckily given a free eshopp overflow the type that hangs on the back but I don't know the size the diminsions are 9x9x3 with 1.5 inch bulkheads. can anyone tell me weather this is the pf1000,1200,1800 I have no idea,I somehow need to find the flow rate and a pump to match this can anyone help with matching the best pump to this box? I also don't know if this will even give me enough filtration for my 180 or if I'll be stuck running another pump I figured this was the right place to turn to!!
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