I still have for sale the Life Reef trickle/wet dry. It is model LF2-75/125 and the dimensions are 24"Lx13"Wx22"H. It has 18G sump volume and 6.5G Bio Ball volume (Bio Balls NOT included).
It has a small hole drilled in it when I used it as a sump, but with the tower, it blocks the hole.
More info can be found here:
http://www.lifereef.com/trickle.html
I'm looking to get $75 for this guy. Locals get dibs, but I am willing to ship. PayPal, Cash, Money Order, Email Transfers all welcome.