Liberty's LCU-PR20S is an LCU-Series plenum-rated condensate pump — built to UL 2043 plenum standards for low smoke and flame-spread when installed in an HVAC air plenum, where a standard condensate pump isn't code-compliant. Fully automatic with a built-in safety switch, wired for 115V. It has a high-impact ABS tank, a stainless steel shaft, permanently lubricated bearings, and a hermetically sealed, thermally protected, quiet-running motor.