Abstract: A drop-in, portable, water conditioning assembly for use in a tank containing water is disclosed. The water conditioning assembly includes a refrigeration unit having a compressor assembly, a condenser and at least one depending evaporator coil for insertion into the tank water. A heating element also ends downwardly from a base and a temperature controller is operatively connected to both the refrigeration unit and the heating element for controlling both the heating and cooling of the water. A motor drives a depending shaft which mounts a blade. The blade both aerates and circulates water within the tank.

Abstract: A tank assembly normally used in laboratories is disclosed. The tank assembly is modular including one or more channel modules and a connector module positioned at each end. The connector modules are of different types including bend modules and end modules. Opposed sidewalls of the channel modules each include an outwardly extending flange member at the top of each sidewall. A reinforcing member is positioned within each of said flange members.