Summit ALFZ37BCSS Freezer vs Zephyr Presrv PRRFD24C2AS

Last updated: November 9, 2026

The Zephyr Presrv PRRFD24C2AS is the better undercounter refrigerator overall, rated 3.1 to 2.9. The Zephyr Presrv PRRFD24C2AS leads on warranty and capacity. The Summit ALFZ37BCSS Freezer wins on noise. The Summit ALFZ37BCSS Freezer costs $1,627.12 less ($1,671.88 vs $3,299).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Summit ALFZ37BCSS Freezer vs Zephyr Presrv PRRFD24C2AS

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every freezers undercounter refrigerator; a clear win is highlighted. How we rank explains each one.

Factor weightZephyr Presrv PRRFD24C2ASSummit ALFZ37BCSS Freezer
Overall rating3.1/52.9/5
Value 30%0 $845.90 per cu ft ($3,299, 3.9 cu ft)0 $623.84 per cu ft ($1,671.88, 2.7 cu ft)
Capacity 15%47 3.9 cu ft6 2.7 cu ft
Installation 20%70 front venting for built-in use, indoor use70 front venting for built-in use, indoor use
Energy use 15%50 energy use not published (neutral score used)92 266 kWh a year
Noise 5%62 37 dB92 33.1 dB
Warranty 15%100 2-year warranty, 5 years on the compressor40 1-year warranty, 5 years on the compressor

Specifications

Zephyr Presrv PRRFD24C2ASSummit ALFZ37BCSS Freezer
Storage
Capacity3.9 cu ft2.7 cu ft
Drawers2-
Convertible zoneYes-
Temperature range-7 to 65 F-13 to 5 F
Defrost-Manual
Installation
Width23.9 in20.9 in
Height33.9 in32 in
Depth24 in22.5 in
Built-in (front venting)Built-inBuilt-in
Outdoor useIndoorIndoor
LockNoNo
Running
Energy use-266 kWh/yr
ENERGY STARYes-
Noise37 dB33.1 dB
Build
Weight135 lb105 lb
Warranty2 years1 year
Compressor warranty5 years5 years

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