American Standard Ovalyn Large Under Counter Sink With Glazed Underside - AMS-497300

The Ovalyn Large 497300 is an under counter mount lavatory. It hangs below the counter deck, so the counter material (stone, solid surface, quartz) has to be cut and polished for an undermount install, and the mounting hardware carries the bowl from underneath. If you need a bowl that sets into the countertop cutout with a visible rim, an undermount model is the wrong choice.

A mounting kit and a template ship with the sink. The template is what your fabricator uses to mark the countertop cutout. You will still need the faucet, drain assembly and P-trap separately, since an undermount china bowl carries no faucet holes of its own and the deck holes are drilled in the countertop.

Yes, a front overflow. That matters when you pick the drain: you need a lavatory drain built for an overflow bowl, not a grid drain intended for an overflow-less sink, or the overflow channel will have nowhere to discharge.

Vitreous china. It is a glazed ceramic body, which is the standard material for commercial and multi-family lavatories because the fired glaze resists staining and cleans with ordinary restroom chemicals. The Ovalyn 497300 is offered in white.

On an undermount bowl the bottom and outer wall of the china sit in the cabinet, exposed to splash and condensation. Glazing the underside gives that surface the same sealed finish as the bowl, so it wipes clean and does not absorb moisture. The rim itself is left unglazed, which is the surface that beds into the sealant against the countertop.

Order by the American Standard part number 497300.02, which is the white Ovalyn Large under counter bowl with the glazed underside. That suffix is the finish code, so repeat orders under the same number keep every restroom in the building matching.

Not recommended. Undermount china needs a counter material with a sealed, machinable edge, which means stone, quartz or solid surface. Laminate and unsealed wood expose a raw substrate edge at the cutout that will swell once water reaches it. If the counter is laminate, use a self-rimming or drop-in lavatory instead of this under counter bowl.