PRODUCT SPECIFICATIONS

TOTO CST454CEF(G)(A)(T40)(R)

Source rating — not measured installation performanceRecorded rating (US gal/flush)Recorded rating: 1.2801.5
Chart generated from this record's EPA snapshot fields. Shared zero baseline; units shown above. This is not a measured flow or flush test.
Tank recordBowl record
Component identification schematic, not to scale. No installation dimensions or compatibility approval are implied.

Compare recorded specifications

Same source category and product or flush type. These are source-record comparisons, not compatible replacements or performance recommendations. Equal ratings do not make two models identical.

Historical EPA source fields; unknown values remain unknown
ParameterTOTO CST454CEF(G)(A)(T40)(R)TOTO CST776CEFD(G)Icera 6251.128.xxPremier 1034395
Source model nameDrake IIDrakeMalibu IINot supplied
Rated flush volumevolume: 1.28 US gal/flushvolume: 1.28 US gal/flushvolume: 1 US gal/flushvolume: 1.28 US gal/flush
Flush typeSingleSingleSingleSingle
Source bowl model numberC454CUF(G)(T40)C776CEF(G)Not suppliedN2442EB
Source tank model numberST454E(A)(R)ST776EDNot suppliedN2442T
Flush mechanismGravityGravityGravityGravity

Model specifications

Recorded in the EPA directory snapshot of 2026-10-30
ParameterRecorded value
Source bowl model numberC454CUF(G)(T40)
Brand as reportedTOTO
Flush mechanismGravity
Flush typeSingle
Rated flush volumevolume: 1.28 US gal/flush
Source model nameDrake II
Source model numberCST454CEF(G)(A)(T40)(R)
Source tank model numberST454E(A)(R)

Full and reduced flush volumes remain separate. Counts of uses are needed to estimate consumption; compatibility and installation conditions are not provided.

Source: EPA WaterSense directory. Sources & Methods.

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Same category and recorded type; these are navigation examples, not recommended substitutes or compatibility matches.

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