Sterling offers 7 composting toilets toilets models in the lineup we track. This page is the Sterling-specific cut of the broader Composting & Dry 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 composting toilets toilets beyond Sterling, the following brands also ship in this category:
A composting toilet uses no water and is not connected to a septic or sewer. Liquids and solids are separated; solids compost in a sealed bin with peat moss or coconut coir as a bulking agent. For off-grid cabins, tiny houses, RV upgrades, and properties where a septic system would cost $25,000+, it's the practical answer — but only after you understand exactly what the day-to-day operation looks like.
A diverter at the front of the bowl routes urine to a separate tank (typically 2.2 gallons on a Nature's Head, 1 gallon on an OGO). Solids drop into a larger composting chamber below, where a hand-crank or motorized agitator stirs them with peat or coir twice a day. A 12-volt or AC fan vents the chamber continuously, exhausting through a 2" or 4" duct to the outside....
For the complete composting toilets buyer's guide (all brands, full comparison framework), see the Composting & Dry Toilets category hub.
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