Spec-by-Spec Comparison
Specification
TOTO
Kohler
Price
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Check current price
Rating
—
—
Glaze
CeFiONtect
Standard ceramic
Design
Low rectangular one-piece, contemporary architectural
Compact one-piece with rounded classical-contemporary silhouette
Map Score
800
800
Bowl Shape
Elongated
Compact Elongated
Flush Type
Tornado Flush (Gravity)
AquaPiston (Gravity)
Watersense
1
1
Ada Compliant
1
1
Height Inches
17.25
17.25
Warranty Years
1
1
Rough In Inches
12
12
Gallons Per Flush
1.28
1.28
Warranty Porcelain
Lifetime
Lifetime
Detailed Comparison
Premium one-piece cross-brand pairing: Aimes ($900-1,000) and San Souci ($820-900). Both deliver luxury-grade build quality and are positioned at similar price points. The Aimes flushes with TOTO Tornado Flush + CeFiONtect glaze (sustained vortex around bowl, ultra-smooth surface). The San Souci uses Kohler AquaPiston canister + Reveal glaze (360° water entry, smooth surface). Functionally equivalent. Form-factor differs: Aimes is angular and full-elongated; San Souci is rounder, compact-elongated (28.5" projection). For a tight master bath, San Souci fits; for a spacious modern bathroom, Aimes is more impactful.
Final Verdict
We recommend the Kohler San Souci for traditional and transitional bathrooms with limited floor depth — its compact-elongated form fits where the Aimes won't. The TOTO Aimes wins for fully contemporary bathrooms with the space for its angular silhouette.
Pros & Cons Side-by-Side
TOTO Aimes One-Piece Elongated 1.28 GPF Toilet
Pros
- Distinctive low rectangular architectural silhouette
- Tornado Flush + CeFiONtect standard
- SoftClose seat included
- Skirted trapway
- Excellent for modern minimalist bathrooms
- Universal Height (ADA)
Cons
- Premium pricing ($880-$1,080)
- Heavier than standard one-piece (~125 lbs)
- Low silhouette can feel unconventional initially
- Limited color availability — primarily Cotton White
Kohler San Souci Compact One-Piece Elongated 1.28 GPF Toilet
Pros
- Compact one-piece (17.5" front-to-back) for space-constrained bathrooms
- AquaPiston canister flush — quieter and longer service life than flapper
- Comfort Height (17.25") ADA-compliant
- Classical-rounded silhouette pairs with traditional or transitional fixtures
- WaterSense 1.28 GPF certified
- Lighter install weight (~95 lbs) than full-elongated one-piece equivalents
- Available in 4 Kohler color codes
- Right-hand trip lever variant for accessibility
Cons
- Standard ceramic glaze (no Pure-Clean)
- AquaPiston canister is Kohler-proprietary
- Compact-elongated bowl may feel small for taller adult users
- SoftClose seat NOT included
- Higher price than equivalent two-piece San Souci variants
- Lower retail presence than Maxton or Cimarron Curv