Reliance Aqua-Tainer 7 Gallon, 4-Pack
For camping and small emergency stashes in a proven rigid 7-gallon jug.
Amazon $149.99$149.99
The Reliance Aqua-Tainer 7 Gallon, 4-Pack and the RomoTech Domed Tank 30 Gal (Black) are evenly matched, rated 3.3 and 3.2. The Reliance Aqua-Tainer 7 Gallon, 4-Pack leads on value and features. The RomoTech Domed Tank 30 Gal (Black) wins on potable claims. The Reliance Aqua-Tainer 7 Gallon, 4-Pack costs $56.51 less ($149.99 vs $206.50).
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.
RomoTech Domed Tank 30 Gal (Black)
For a 30-gallon opaque square tank with a 5 in. fill lid and an NSF-certified resin.
Amazon $206.50$206.50
Which should you buy?
- Choose the Reliance Aqua-Tainer 7 Gallon, 4-Pack for value ($5.36 per gallon ($149.99, 28 gal) vs $6.88 per gallon ($206.50, 30 gal)) and features (spigot included, stackable vs 0.8 in. outlet fitting, UV resistant).
- Choose the RomoTech Domed Tank 30 Gal (Black) for potable claims (NSF certified, food-grade, BPA free vs food-grade, BPA free).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 25 to 49 gallons water storage tank; a clear win is highlighted. How we rank explains each one.
| Factor weight | Reliance Aqua-Tainer 7 Gallon, 4-Pack | RomoTech Domed Tank 30 Gal (Black) |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 40% | 45 $5.36 per gallon ($149.99, 28 gal) | 31 $6.88 per gallon ($206.50, 30 gal) |
| Potable claims 25% | 50 food-grade, BPA free | 100 NSF certified, food-grade, BPA free |
| Features 20% | 65 spigot included, stackable | 55 0.8 in. outlet fitting, UV resistant |
| Warranty 15% | 44 5-year warranty | 0 warranty not published, scored as none |
Specifications
| Reliance Aqua-Tainer 7 Gallon, 4-Pack | RomoTech Domed Tank 30 Gal (Black) | |
|---|---|---|
| Capacity | ||
| Total capacity | 28 gal | 30 gal |
| Containers | 4 containers | 1 tank |
| Size (each) | 11.5 x 11.2 x 15.8 in | 24 x 19 x 22.5 in |
| Empty weight (each) | 2 lb | 19 lb |
| Water safety | ||
| Material | Plastic | MDPE |
| NSF certified | - | Yes |
| Food grade | Yes | Yes |
| BPA free | Yes | Yes |
| Features | ||
| Spigot or outlet | Included | 0.8 in. outlet |
| Stackable | Yes | No |
| UV resistant | - | Yes |
| Made in USA | - | Yes |
| Warranty | ||
| Warranty | 5 years | - |