{"product_id":"nantucket-sinks-um-159-w-undermount-bathroom-sink","title":"Nantucket Sinks UM-159-W Undermount Bathroom Sink","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NANTUCKET SINKS UM-159-W is a rectangular undermount bathroom sink made from vitreous china with a durable enamel glaze finish in classic glossy white. It measures 17.125 x 11.25 inches overall with a 15 x 9 inch interior bowl and a 6.25 inch depth, delivering a deep scoop profile that aids drainage and maximizes usability in tight spaces. The sink includes an overflow port and requires a standard 1.75 inch drain opening with overflow, sold separately. An installation template is included. At 13 pounds, it is manageable for a single installer. Plumbers and finish carpenters typically handle undermount sink installations in residential bath remodels.\u003c\/p\u003e\u003cp\u003eThe UM-159-W is sized to fit a 21 inch vanity cabinet, making it a practical choice for compact powder rooms, small bathrooms, and space-constrained residential layouts. Its rectangular profile with clean lines suits contemporary and transitional bath designs alike. The deep bowl geometry keeps water contained and directed toward the drain. Dimensions may vary by up to 0.25 inches, consistent with vitreous china manufacturing tolerances. A mounting template is included to assist with countertop cutout layout.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVitreous china construction with enamel glaze resists staining, scratching, and daily chemical exposure\u003c\/li\u003e\n\u003cli\u003eOverall dimensions: 17.125 x 11.25 inches; interior bowl: 15 x 9 inches; bowl depth: 6.25 inches\u003c\/li\u003e\n\u003cli\u003eIntegrated overflow port compatible with standard overflow drain assemblies\u003c\/li\u003e\n\u003cli\u003eStandard 1.75 inch drain opening accepts widely available drain hardware\u003c\/li\u003e\n\u003cli\u003eInstallation template included for accurate countertop cutout\u003c\/li\u003e\n\u003cli\u003eLimited lifetime warranty from the manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an undermount drop-in replacement or new-install sink for 21 inch vanity cabinets in residential bathroom applications. Drain assembly with overflow is not included and must be sourced separately.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a licensed plumber or experienced finish contractor. Shut off the water supply and confirm countertop material suitability for undermount mounting before beginning. Use the included template to mark and cut the countertop opening precisely. Silicone adhesive and undermount clips or brackets are the standard fastening method for this sink type; follow countertop manufacturer guidelines for appropriate adhesive selection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Dimensions\u003c\/strong\u003e: 17.125 x 11.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior Bowl Dimensions\u003c\/strong\u003e: 15 x 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBowl Depth\u003c\/strong\u003e: 6.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vitreous china (ceramic) with enamel glaze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Glossy white\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain Opening\u003c\/strong\u003e: 1.75 inches (overflow type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Fit\u003c\/strong\u003e: 21 inch vanity cabinet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverflow\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: Limited lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NANTUCKET SINKS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: UM-159-W\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NANTUCKET SINKS","offers":[{"title":"Default Title","offer_id":51998909628722,"sku":"UM-159-W","price":119.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ab68f2c567a41ea31d269e39783eb642.jpg?v=1789995188","url":"https:\/\/voomisupply.com\/products\/nantucket-sinks-um-159-w-undermount-bathroom-sink","provider":"Voomi Supply","version":"1.0","type":"link"}