SpecDirectory

MFF123SS

Marathon · Refrigerator

ENERGY STAR CertifiedResidential Refrigerators →
Capacity

12.1cu ft

Annual Energy

316kWh/yr

Better Than Standard

10%

Most Efficient
Dimensions

23.6 × 59.8in (w × h)

ENERGY STAR Most Efficient

Marathon MFF123SS: annual energy 316 kWh/yr, around the middle of the range for residential refrigerators (category median 344 kWh/yr).

Where this model sits

Capacity12.1cu ft
1median 1331.7
Annual Energy316kWh/yr
42median 344805

The Marathon MFF123SS is a 12.1 cu ft refrigerator. At 316 kWh/yr it ranks around the middle of the 4,507 certified residential refrigerators models. Among similar-sized residential refrigerators (within 10% of its capacity), it uses more energy than the peer median of 311 kWh/yr. Its footprint is 23.6 × 59.8 in.

Specifications

Capacity
Total Volume12.1cu ft
Adjusted Volume14.7cu ft
Dimensions
Height59.8in
Width23.6in
Energy
Annual Energy Use316kWh/yr
US Federal Standard352kWh/yr
Better Than Standard10%
Most EfficientYes
All 23 specifications
Configuration
TypeTop Freezer
Product Class3 - Refrigerator-freezers - automatic defrost with top-mounted freezer without an automatic ice maker
Defrost TypeAutomatic
Counter DepthNo
Built InNo
CompactNo
Ice MakerNo
Through-the-Door DispenserNo
Connectivity
ConnectedNo
Identifiers
Model NumberMFF123SS
UPC809854001351
ENERGY STAR IDES_1137295_MFF123SS_04282026110246_80297847
Date Qualified2026-04-16
Available From2026-04-16
MarketsCanada

Dimensions are as Marathon reported them to ENERGY STAR. They can differ from the manufacturer's own sheet — confirm against the model's spec sheet before you build or buy. How we checked.

Fit checker

23.6 in59.8 in
Scale drawing generated from published dimensions — Top Freezer. Not a photograph.

Documentation

We link to manufacturer documentation at its original source rather than rehosting it, so you always get the current revision.

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