## Common ground
Both options are types of gutters and gutter spouts based on their primary material.
## Options at a glance
**7325 – Iron or steel**
- **Defining trait:** Constructed primarily from iron or steel, offering high durability and strength.
- **Typical examples:** Galvanized steel downspouts, corrugated iron gutters.
- **Best fit when:** Long-term outdoor use, heavy rainfall areas, or where structural strength is critical.
**7907.00 – Zinc**
- **Defining trait:** Made from zinc, typically in the form of galvanized coating or pure zinc sheeting, known for corrosion resistance and longevity.
- **Typical examples:** Zinc-coated steel gutters, solid zinc gutter systems.
- **Best fit when:** Aesthetic appeal, long-term rust resistance, or use in coastal or humid environments.
## Key differences
| Feature | 7325 (Iron/Steel) | 7907.00 (Zinc) |
|------------------|--------------------------|-------------------------------|
| Material | Iron or steel | Zinc (often coated or pure) |
| Corrosion resistance | Moderate (depends on coating) | High (natural oxide layer) |
| Durability | High | Very high |
| Appearance | Industrial, utilitarian | Smooth, sleek, modern |
## How to choose
- Is the product primarily made of steel or iron? → 7325
- Does it use zinc as the main material or have a visible zinc finish? → 7907.00
## Overlaps & pitfalls
A product may be both steel and zinc-coated (e.g., galvanized steel), which could fit both codes. In such cases, prioritize based on **the primary structural material**: if steel is the base, use 7325; if zinc is the dominant material (e.g., solid zinc sheeting), use 7907.00. The HS code depends on the main material, not just coating