PRODUCT SPECIFICATIONS

Gerber GHE20317(HE-20-317)

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
ParameterGerber GHE20317(HE-20-317)Gerber GWS20918(WS-20-918)Icera 6251.128.xxPremier 1034395
Source model nameULTRA FLUSH®MAXWELL®Malibu 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 numberGUF21377(UF-21-377)GMX21928(MX-21-928)Not suppliedN2442EB
Source tank model numberGHE28385(HE-28-385)G0028990(28-990)Not suppliedN2442T
Flush mechanismPressure AssistGravityGravityGravity

Model specifications

Recorded in the EPA directory snapshot of 2026-10-30
ParameterRecorded value
Source bowl model numberGUF21377(UF-21-377)
Brand as reportedGerber
Flush mechanismPressure Assist
Flush typeSingle
Rated flush volumevolume: 1.28 US gal/flush
Source model nameULTRA FLUSH®
Source model numberGHE20317(HE-20-317)
Source tank model numberGHE28385(HE-28-385)

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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