What sets it apart
There is no cage, so there is no galvanized frame to bend and no welds to crack. There is also no cage to carry a stacking load. An all-plastic tank holds its liquid in its own wall, and the wall is thick because it has to. The result is a tank that is easier to clean and harder to stack.
That changes how you grade it. The grader walks cage, bottle, valve and base; for an all-plastic tank, the bottle and valve checks do all the work. Chalk, cracks, stains and a heel in the bottom are the signs to read.
Where all-plastic fits
It suits fixed storage: a header tank for a drip line, a rinse tank at a packing line or a rainwater tank behind a shop in Redlands. It is less suited to shipping hazardous liquids, where the design code and the test history on the plate decide what is allowed.
Plastic and composite IBCs should never be used for Class I flammable liquids, and a tank left in desert sun needs a cover. The desert sun guide covers both.
| Feature | All-plastic | Caged |
|---|---|---|
| Steel cage | No | Yes, galvanized |
| Stacking | Per its plate, often not stacked | Per its plate, commonly 2 high full |
| Cleaning | Smooth wall, easier | Cage must be cleared too |
| Repair by rebottling | Not applicable | Yes, a new bottle in a good cage |
Ask these in the request
- Size and footprint, since not every all-plastic tank is 48 by 40 inches.
- The last contents, and the SDS if it was a chemical.
- The wall condition: chalk, scoring, stress cracks.
- What it will hold and where it will sit.
Where an all-plastic tote is the right call
An all-plastic tote has no steel in it, which makes it the answer for sites that cannot have metal near the product: a corrosive liquid that attacks a steel cage, or an electrostatic-sensitive area. It is lighter, and that matters for manual handling and for freight.
The downside is rigidity. Without a cage, the bottle carries its own load, and a stack that a caged tote handles easily may be too much for a plastic one.
A short buying note
Ask the maker of an all-plastic tote for its stacking rating. Without a cage, the figure is lower, and exceeding it is how bottles split.
Questions people ask
Is an all-plastic tote better than a caged one?
Different. It is simpler to clean and cannot be rebottled. A caged tote can be re-used by replacing the bottle.
Can I stack them?
Follow the plate or the maker. Do not assume an all-plastic tank stacks the way a caged tote does.
Sources. Last reviewed 2026-11-11.