PRODUCT SPECIFICATIONS

Mansfield 177-178

Source rating — not measured installation performanceRecorded rating (US gal/flush)Full flush: 1.6Reduced flush: 1.102
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
ParameterMansfield 177-178Villeroy & Boch 6612-YY-XXOVE DECORS ForresOVE DECORS Derry
Source model nameEnso Dual FlushAveoNot suppliedNot supplied
Rated flush volumefull: 1.6 / reduced: 1.1 US gal/flushfull: 1.6 / reduced: 0.8 US gal/flushfull: 1.6 / reduced: 1.1 US gal/flushfull: 1.6 / reduced: 1.1 US gal/flush
Flush typeDualDualDualDual
Source bowl model number1776612-YY-XXNot suppliedNot supplied
Source tank model number178GEBERIT 111.335.00.5Not suppliedNot supplied
Flush mechanismGravityGravityGravityGravity

Model specifications

Recorded in the EPA directory snapshot of 2026-10-30
ParameterRecorded value
Source bowl model number177
Brand as reportedMansfield
Flush mechanismGravity
Flush typeDual
Rated flush volumefull: 1.6 / reduced: 1.1 US gal/flush
Source model nameEnso Dual Flush
Source model number177-178
Source tank model number178

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.

Related category guides and research · All guides · Explore a shower and toilet use scenario