Heatworks — a US-based tech firm specializing in products that “preserve Earth’s precious resources” — is now taking pre-orders on its new Tetra countertop dishwasher. After turning heads when it was unveiled, the completely self-contained countertop dishwasher is now available for purchase with a special pre-order offer at $100 off the MSRP. Head below for details on the “world’s only fully self-contained” dishwasher.