ZLINE RDSPO-24 Touchstone
A panel-ready outdoor drawer fridge with the longest warranty in its group, for an outdoor kitchen that matches custom cabinetry.
Amazon $2,319.99$2,319.99
The ZLINE RDSPO-24 Touchstone is the better undercounter refrigerator overall, rated 3.5 to 3.2. The ZLINE RDSPO-24 Touchstone leads on warranty and installation. The Summit SP6DS3D 3-Drawer wins on value and capacity. The Summit SP6DS3D 3-Drawer costs $268.28 less ($2,051.71 vs $2,319.99).
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 SP6DS3D 3-Drawer
A three-drawer built-in fridge for a kitchen island where food is easier to sort into separate drawers.
Amazon $2,051.71$2,051.71
Which should you buy?
- Choose the ZLINE RDSPO-24 Touchstone for warranty (2-year warranty, 5 years on the compressor vs 1-year warranty, 5 years on the compressor) and installation (front venting for built-in use, rated for outdoor use vs front venting for built-in use, indoor use).
- Choose the Summit SP6DS3D 3-Drawer for value ($418.72 per cu ft ($2,051.71, 4.9 cu ft) vs $504.35 per cu ft ($2,319.99, 4.6 cu ft)) and capacity (4.9 cu ft vs 4.6 cu ft).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every refrigerator drawers undercounter refrigerator; a clear win is highlighted. How we rank explains each one.
| Factor weight | ZLINE RDSPO-24 Touchstone | Summit SP6DS3D 3-Drawer |
|---|---|---|
| Overall rating | 3.5/5 | 3.2/5 |
| Value 30% | 10 $504.35 per cu ft ($2,319.99, 4.6 cu ft) | 20 $418.72 per cu ft ($2,051.71, 4.9 cu ft) |
| Capacity 15% | 70 4.6 cu ft | 80 4.9 cu ft |
| Installation 20% | 90 front venting for built-in use, rated for outdoor use | 70 front venting for built-in use, indoor use |
| Energy use 15% | 50 energy use not published (neutral score used) | 60 260 kWh a year |
| Noise 5% | 50 noise level not published (neutral score used) | 50 noise level not published (neutral score used) |
| Warranty 15% | 100 2-year warranty, 5 years on the compressor | 40 1-year warranty, 5 years on the compressor |
Specifications
| ZLINE RDSPO-24 Touchstone | Summit SP6DS3D 3-Drawer | |
|---|---|---|
| Storage | ||
| Capacity | 4.6 cu ft | 4.9 cu ft |
| Drawers | 2 | 3 |
| Temperature range | 34 to 65 F | 36 to 43 F |
| Defrost | Automatic | Frost-free |
| Installation | ||
| Width | 23.9 in | 23.4 in |
| Height | 34 in | 33.9 in |
| Depth | 22.4 in | 23.9 in |
| Built-in (front venting) | Built-in | Built-in |
| Outdoor use | Rated for outdoor | Indoor |
| Safety listing | - | UL 471 |
| Max ambient | 110 F | - |
| Panel ready | Yes | - |
| Lock | Yes | - |
| Running | ||
| Energy use | - | 260 kWh/yr |
| Build | ||
| Weight | 121 lb | 120 lb |
| Warranty | 2 years | 1 year |
| Compressor warranty | 5 years | 5 years |