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PRODUCT SPECIFICATIONS

DUKO A249L+T491.0GS

Source rating — not measured installation performanceRecorded rating (US gal/flush)Recorded rating: 101
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
ParameterDUKO A249L+T491.0GSDUKO A249R+T491.0GSPremier 1034395American Standard 3471128.XXX
Source model nameImperialImperialNot suppliedHorizon
Rated flush volumevolume: 1 US gal/flushvolume: 1 US gal/flushvolume: 1.28 US gal/flushvolume: 1.28 US gal/flush
Flush typeSingleSingleSingleSingle
Source bowl model numberA249LA249RN2442EB3061101R.XXX
Source tank model numberT491.0GST491.0GSN2442T4061428R.XXX
Flush mechanismGravityGravityGravityGravity

Model specifications

Recorded in the EPA directory snapshot of 2026-10-30
ParameterRecorded value
Source bowl model numberA249L
Brand as reportedDUKO
Flush mechanismGravity
Flush typeSingle
Rated flush volumevolume: 1 US gal/flush
Source model nameImperial
Source model numberA249L+T491.0GS
Source tank model numberT491.0GS

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.

Other source models to examine

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

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