Suburban 3056AST 0.9 cu ft RV Microwave
#2 in Built-inFull review
A compact 0.9 cu ft built-in for RVs with a shallow cabinet opening. It comes with its trim kit.
Amazon $249.95$249.95
The Suburban 3056AST 0.9 cu ft RV Microwave is the better RV microwave overall, rated 3.2 to 3.0. The Suburban 3056AST 0.9 cu ft RV Microwave leads on features. The Greystone 0.9 cu ft RV Microwave wins on value. The Greystone 0.9 cu ft RV Microwave costs $28.55 less ($221.40 vs $249.95).
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.
Greystone 0.9 cu ft RV Microwave
#5 in Built-inFull review
The Greystone built-in that many RV makers install. Pick it to replace the same unit with no cabinet changes.
Amazon $221.40$221.40
Which should you buy?
- Choose the Suburban 3056AST 0.9 cu ft RV Microwave for features (installs with no extra parts vs none of the listed features).
- Choose the Greystone 0.9 cu ft RV Microwave for value ($246 per cu ft ($221.40, 0.9 cu ft) vs $277.72 per cu ft ($249.95, 0.9 cu ft)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every built-in RV microwave; a clear win is highlighted. How we rank explains each one.
| Factor weight | Suburban 3056AST 0.9 cu ft RV Microwave | Greystone 0.9 cu ft RV Microwave |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Value 25% | 49 $277.72 per cu ft ($249.95, 0.9 cu ft) | 59 $246 per cu ft ($221.40, 0.9 cu ft) |
| Capacity 15% | 10 0.9 cu ft | 10 0.9 cu ft |
| Cooking power 15% | 67 900 W cooking power | 67 900 W cooking power |
| Input draw 15% | 86 1,350 W rated input | 86 1,350 W rated input |
| Features 20% | 35 installs with no extra parts | 0 none of the listed features |
| Warranty 10% | 50 1-year warranty | 50 1-year warranty |
Specifications
| Suburban 3056AST 0.9 cu ft RV Microwave | Greystone 0.9 cu ft RV Microwave | |
|---|---|---|
| Cooking | ||
| Mounting | Built-in | Built-in |
| Modes | Microwave | Microwave |
| Capacity | 0.9 cu ft | 0.9 cu ft |
| Cooking power | 900 W | 900 W |
| Turntable | 10.8 in | - |
| Power | ||
| Rated input | 1,350 W | 1,350 W |
| Rated current | 15 A | 15 A |
| Voltage | 120 V AC | 120 V AC |
| Fit | ||
| Outside (W x H x D) | 23.4 x 15 x 14 in | 19 x 12 x 14 in |
| Cutout (W x H x D) | 21.5 x 14.5 x 12 in | - |
| Trim kit | Included | Sold separately |
| Size with trim (W x H) | - | 23.5 x 15.1 in |
| Weight | 29 lb | 30 lb |
| Support | ||
| Warranty | 1 year | 1 year |