Sterling offers 7 dual-flush toilets models in the lineup we track. This page is the Sterling-specific cut of the broader Dual-Flush Toilets toilets category — same product class, narrowed to the Sterling catalog only.
Sterling is a Kohler Company subsidiary brand (acquired by Kohler in 1984), positioned as the volume tract-builder and value-residential plumbing line. Manufactured in Wisconsin alongside Kohler products but engineered to a different price point — Sterling toilets, faucets, and showers are stocked at Home Depot and Lowes as the "Kohler-quality without the Kohler price" alternative. The toilet line includes the Stinson, Karsten, and Riverton series — primarily two-piece elongated 1.28 GPF models for new-construction spec houses.
For the complete Sterling lineup across all sub-types and capacities, see the Sterling Toilets hub.
If you're cross-shopping dual-flush toilets beyond Sterling, the following brands also ship in this category:
A dual-flush toilet has two buttons (or a split lever): a half-flush for liquid waste — typically 0.8 to 1.1 GPF — and a full flush for solids at 1.28 to 1.6 GPF. The water savings are real over a year. The maintenance reality is less talked about.
A standard 1.28 GPF toilet uses a single flush mechanism — flapper or piston — that releases a fixed volume of water with each flush. A dual-flush uses a cylinder-style flush valve with two trip points: pressing the smaller button (or pushing the lever down) opens the valve for a shorter duration; the larger button opens it longer. The 3-inch or 4-inch valve seat at the bottom of the tank is larger than a traditional flapper, allowing higher-velocity water release in less time.
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For the complete dual-flush buyer's guide (all brands, full comparison framework), see the Dual-Flush Toilets category hub.
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