# Kohler Cimarron K-31621 vs Niagara Original Stealth 0.8 GPF: specs and price compared

A sourced, side-by-side comparison of the Kohler Cimarron K-31621 (Kohler) and Niagara Original Stealth 0.8 GPF (Niagara Conservation) among toilets. Kohler Cimarron K-31621 is the cheaper of the two at $213.

## Side by side

| Spec | Kohler Cimarron K-31621 | Niagara Original Stealth 0.8 GPF |
| --- | --- | --- |
| US price | $213 | $266.18 |
| Brand | Kohler | Niagara Conservation |
| Flush type | gravity | gravity |
| Flush volume gpf | 1.28 | 0.8 |
| Map score | — | 800 |
| Bowl shape | elongated | elongated |
| Bowl height inches | — | 17 |
| Rough in inches | 12 | 12 |
| Trapway diameter inches | — | 2 |
| Piece count | two-piece | two-piece |
| Water sense certified | Yes | Yes |
| Seat included | No | No |
| Weight pounds | — | — |

## Key differences

- Flush volume gpf: Kohler Cimarron K-31621 1.28 vs Niagara Original Stealth 0.8 GPF 0.8

## Sources

- Kohler Cimarron K-31621: https://www.studiokohler.com/en-us/bathroom/toilets/31621-kohler-plumbinguscanada (studiokohler.com, verified 2026-07-13)
- Niagara Original Stealth 0.8 GPF: https://niagaracorp.com/products/original-stealth-single-flush-elongated/ (niagaracorp.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/toilets/kohler-cimarron-vs-niagara-stealth/
Cite: Per The Front Desk Review, Kohler Cimarron K-31621 ($213) vs Niagara Original Stealth 0.8 GPF ($266.18) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/toilets/kohler-cimarron-vs-niagara-stealth/
License: CC BY 4.0.