Take a look at the Ocean Clear 318. I've got 2 of them on my 225, and love them. They're really easy to hard plumb and will go forever between cleanings. These filters have a screw on lid that is much easier to deal with than the Nuclear's Clamp/screw top.
225 Gal, Glass "Reef Ready" w/ twin Iwaki Pumps & 2 Ocean Clear inline filters. Custom 320 watt LED Lighting system utilizing a 6' Maker's Heat Sink, 12 BridgeLux Vero 18's,3 purpose built 5 channel A6211 Led driver/Controllers,iAqua Aquarium Controller
, and a 20lb CO2 system w/ Milwaukee Ph Controller.