1HP Daeil (i think) compressor chiller, comes with probe n temp controller. $100
very efficient, even at my biggest setup of a 4x2.5x2ft & a 4x1.5x1.5ft & a 3+ft sump, it only kicked in for less than 1/2hr each time.
optional free item: rio pump (as feed pump) not sure if it's the 6000+ l/hr or the 4000+ l/hr model. Will confirm tmrw.