American Standard Walk In Acrylic Tub Extender - AMS-9EXT51-G

Two colors, matched to American Standard's walk-in bath shells: white (order 9EXT51-GW) and linen (order 9EXT51-GL). Pick the one that matches the tub already going in, since the extender sits alongside the tub apron and a mismatch shows. Same part otherwise.

It fills the gap when the walk-in bath is shorter than the alcove opening it is going into. Walk-in tubs run shorter front to back than a standard 60 inch alcove tub, so the extender panel closes out the leftover run in a matching acrylic color instead of leaving framing or a field-built filler exposed. It is an accessory panel, not a tub and not a drain kit.

No. Those come with the walk-in bath itself, which ships with a color matched waste and overflow, a built-in color matched grab bar, the watertight door and its aluminum frame, and the free standing metal support frame. The extender is the finish panel that closes out the extra alcove length, so plan on ordering it in addition to the tub, not instead of any of those.

Only where the walk-in bath is shorter than the existing alcove. If you are dropping the tub into a framed rough opening built to its exact size, no extender is needed. In a retrofit over a removed 60 inch alcove tub, you will almost always have leftover length to close out, and that is where the 9EXT51 panel goes. Order it in the same color as the tub shell, white or linen.

Yes, it is acrylic, matching the premium acrylic with fiberglass reinforcement American Standard uses on its walk-in bath shells. That is why the white and linen versions blend with the tub apron rather than reading as a separate add-on panel.