We're very satisfied with our Reef Octopus TDNW 300 Recirculating Skimmer. Although it's a monster, we had planned on having an external one and there was no way we could've afford a Euro or Deltec.
Specs:
12" diameter
32" Tall
Recirculating Pumps: 3 x Octopus OTP 2000, 38W, 530GPH.
Requires additional feed pump with gph rating at approx. 1.5 times volume of your system.
Approx. footprint 20" x 14"
Now remember we have a 215g. with a 125g sump/refugium and a 34g. Neo-Nano tank plumbed to this system. This skimmer it's doing its job...IMO.