PRODUCT SPECIFICATIONS

Niagara C11.301.01

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.

Model specifications

Recorded in the EPA directory snapshot of 2026-10-30
ParameterRecorded valueSource
Source bowl model number11.0203.01
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C4

Original cell: 11.0203.01

FieldID: d33aa2f111bf234f89d8bd850f6d0be9c869e13dafd202dcdce899be8493ffae

EvidenceID: 82b8d8024c1fd7917061b7831296c5b588c35db3e5ef75bfe221255eef9ddd64

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Brand as reportedNiagara
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C1

Original cell: Niagara

FieldID: 3b6de37929ae46223c6a83b4116af1e513a4b84ee69c1362b32ac519e6e0e048

EvidenceID: 1b3b3fd62fad598dc0e2b667201bc2426c044e71650dc09b1d49e6d4d3a8f7cb

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Flush mechanismGravity
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C8

Original cell: Gravity

FieldID: f45fc4410aa7c1655dc9c679bf036b02a3e41b240df07f9ac457dbaea7a01914

EvidenceID: 36c875274184a4e4f1d6f9fc85177ba92aad452e266b9faba59f4a4827e817f0

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Flush typeSingle
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C7

Original cell: Single

FieldID: 1ed4a7f3ea16e6d360890c548322870a48be4057e87c812f5649c2240498b48f

EvidenceID: 0b839e9e30b831c6289ce50a3b8b8630d71e4b4d8fd4e2adf39bb278b3fdf50d

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Rated flush volumevolume: 1.28 US gal/flush
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C6

Original cell: 1.28

FieldID: 4bc3dd5d541188b3ef4b8dae448267d689e8fb11943ea543f2061fa75200f369

EvidenceID: bfbdb01623360805fa655d438a437f5362f0539cada6a21ff970572a6aa38ca8

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Source model nameLiberty
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C2

Original cell: Liberty

FieldID: 82ca81c0f4779bcaf5bd9faf83d8af6b5023452e0a2bba5d01e52984bb070138

EvidenceID: bdf00b461159a1d61c59cda003a23d65a65f94a2b43df02f67715f44635f5abf

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Source model numberC11.301.01
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C3

Original cell: C11.301.01

FieldID: af70aeaca53d0e38863b7381fafd86e401d1581995896d90b601d3ca924d429f

EvidenceID: 8504fcb380acbdba7b50675619d7113f3cb3c3f367a3fdbaf4556239cb5e888b

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

Source tank model number11.0302.01RWH
Field source

ZIPCSV:WaterSense-Products-TankTypeToilets.csv!R6183C5

Original cell: 11.0302.01RWH

FieldID: 0d2f9206a3abd72ab0fa4a6093350621c5374ea0719a00131c6c49de1c048570

EvidenceID: acef4d30d876da15b29e0efecf38424bcdbc8c245031e133e630740028ec1b98

Raw SHA256: 577fa416addade9df0ee69c78d9e7c46ac4098b933286d2515e1bb18f8ca78ef

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

What this record can — and cannot — answer

Use these fields to identify the source model and compare the same type of recorded quantity. This historical record does not establish current certification, sales availability, price, installation compatibility or measured performance in your building.

Official source: EPA WaterSense product directory. This is a category-wide source, not a model-specific product or purchase link. Read the source and methods notes.

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