A:Answer No, this model cannot be installed under a sink. We currently manufacture one model designed for use under a sink, PZF560HGWBB. To review additional information on this model, please visit this link, here: https://www.homedepot.com/p/GE-Profile-21-in-Smart-Multi-Use-Compact-Dishwasher-w-6-Place-Settings-for-Countertop-Built-In-or-Under-Sink-Installation-PZF560HGWBB/339333012#see-more-details.The under-sink trim kit is model number PCDUS01KITFS. To review installation requirements for this kit, please visit this link, here: https://images.thdstatic.com/catalog/pdfImages/e4/e4645508-754a-4d9a-bda3-be905db966bf.pdf