i ended up buying a eshopps psk-75 off ebay from the premium aquatics store for $98 shipped for the in sump model. my in sump footprint i have to work with is 9.5x6 and its footprint is 9x4 so i should be good and have enough room for my drain line, the skimmer, heater (winter only) and my temp probe and PH probe all in that chamber so hopefully it works out good! ive wanted an in sump for a while i finally figured out this one would fit. will make it nice if it ever decides to overflow on me i wont have a mess all over the carpet/stand.