Sterling Low-Flow & WaterSense Toilets
Sterling filters
Sterling Karsten Two-Piece Elongated 1.28 GPF Toilet
Sterling Riverton Two-Piece Elongated 1.28 GPF Toilet
Sterling Windham Two-Piece Round-Front 1.28 GPF Toilet
Sterling Rockton One-Piece Elongated 1.28 GPF Toilet
Sterling Sacramento Two-Piece Elongated 1.28 GPF Toilet
Sterling Plymouth Plus Two-Piece Round-Front 1.6 GPF Toilet
Sterling Low-Flow & WaterSense Toilets: buyer's guide
Sterling offers 7 low-flow toilets toilets models in the lineup we track. This page is the Sterling-specific cut of the broader Low-Flow & WaterSense Toilets toilets category — same product class, narrowed to the Sterling catalog only.
About Sterling
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.
Sterling Low-Flow & WaterSense Toilets models we track
- Sterling Stinson Two-Piece Elongated 1.28 GPF Toilet (402080-0) — Sterling Stinson — Kohler-owned Sterling's volume tract-builder two-piece. 1.28 GPF, comfort height, value-tier.
- Sterling Karsten Two-Piece Elongated 1.28 GPF Toilet (402086-0) — Sterling Karsten — mid-tier Sterling with concealed-trapway styling and ProForce flush technology.
- Sterling Riverton Two-Piece Elongated 1.28 GPF Toilet (402087-0) — Sterling Riverton — designer-leaning Sterling with sculptural curves. The "Sterling that looks more like a Kohler" option.
- Sterling Windham Two-Piece Round-Front 1.28 GPF Toilet (402082-0) — Sterling Windham — round-front variant of the Sterling lineup. Powder room + tight half-bath workhorse with Kohler-owned brand pedigree.
- Sterling Rockton One-Piece Elongated 1.28 GPF Toilet (402088-0) — Sterling Rockton — one-piece Sterling with skirted-trapway styling. The Sterling that looks closest to a Kohler designer one-piece.
- Sterling Sacramento Two-Piece Elongated 1.28 GPF Toilet (402089-0) — Sterling Sacramento — designer two-piece with skirted-trapway exterior. Modern apartment-spec upgrade in the Sterling lineup.
- Sterling Plymouth Plus Two-Piece Round-Front 1.6 GPF Toilet (402015-0) — Sterling Plymouth Plus — legacy 1.6 GPF Sterling workhorse for replacement installs where pre-WaterSense drainline carry has been proven.
Other Low-Flow Toilets toilets brands
If you're cross-shopping low-flow toilets toilets beyond Sterling, the following brands also ship in this category:
- Kohler Low-Flow Toilets
- TOTO Low-Flow Toilets
- American Standard Low-Flow Toilets
- Niagara Low-Flow Toilets
- Eljer Low-Flow Toilets
- Swiss Madison Low-Flow Toilets
- Woodbridge Low-Flow Toilets
- Delta Low-Flow Toilets
About Low-Flow & WaterSense Toilets toilets
If "low-flow toilet" is on your search list, you're probably either (a) noticing your water bill, (b) trying to qualify for a state or municipal rebate, or (c) in a drought-zone where every gallon saved is a long-term hedge. Here's exactly what the numbers mean and how to choose between the three tiers.
- Federal maximum since 1994: 1.6 GPF — the Energy Policy Act standard. Any new toilet sold legally in the US is at most 1.6 GPF.
- EPA WaterSense voluntary spec: 1.28 GPF or lower, plus a flush-performance minimum (MaP-tested at 350g of solid waste). Roughly 70% of toilets at retail today carry the WaterSense label.
- California state requirement (since 2014): all new toilets sold in CA must...
For the complete low-flow toilets buyer's guide (all brands, full comparison framework), see the Low-Flow & WaterSense Toilets category hub.
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