Spec-by-Spec Comparison
Specification
Kohler
Kohler
Price
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Rating
4.5/5 (3,460)
—
Map Score
800
800
Bowl Shape
Elongated
Elongated
Flush Type
AquaPiston (Gravity)
Class Five (Gravity)
Ada Compliant
1
1
Height Inches
16.5
16.5
Rough In Inches
12
12
Gallons Per Flush
1.28
1.28
Glaze
—
Standard ceramic
Watersense
—
1
Warranty Years
—
1
Warranty Porcelain
—
Lifetime
Detailed Comparison
The Cimarron ($420-480) and Highline Classic ($280-320) look 95% identical and are nearly identical in spec sheet — both 1.28 GPF, both 12" rough-in, both elongated, both MaP-rated 1,000g. The two real differences are flush mechanism and seat height. Cimarron uses AquaPiston canister flush (water enters bowl from 360° around the canister, no flapper) — 10+ year valve life with no replacement parts. Highline Classic uses traditional Class Five flush with a rubber flapper that wears out at year 3-5 and needs $5 replacement. Cimarron is comfort-height (16.5" floor-to-rim); the default-SKU Highline is standard height (14.75") — there's also a Highline Comfort Height SKU but it's less commonly stocked. For a 15-year residential install, the Cimarron is the better value once you factor cumulative maintenance.
Final Verdict
We recommend the Kohler Cimarron for primary bathrooms — the AquaPiston canister flush eliminates flapper replacements for the toilet's entire 15+ year service life. The Highline Classic is the smarter buy for guest bathrooms, rental units, or low-use installations where the $100 savings outweighs the $30 of cumulative flapper replacements over time.
Pros & Cons Side-by-Side
Kohler Cimarron Comfort Height Elongated Toilet
Pros
- AquaPiston flushing technology
- Comfort height
- Widely available
Cons
- Lower MaP score than TOTO Drake II
- Seat sold separately
Kohler Highline Classic Two-Piece Elongated 1.28 GPF Toilet
Pros
- Lowest-priced Kohler residential ($180-$280)
- Class Five flush — 800g MaP score
- Comfort Height (16.5") — adult-friendly
- Universal parts ecosystem (Korky/Fluidmaster fit)
- Stocked at every Home Depot and Lowes
- ADA-compliant when paired with chair-height seat
- 1.28 GPF — WaterSense certified
Cons
- Standard ceramic glaze (no Pure-Clean)
- Soft-close seat NOT included
- Class Five flush is less refined than AquaPiston (Memoirs, Adair, Maxton)
- Bowl height 16.5" is lower than newer comfort-height standards (17.25"+)