Fish Tank Air Stone
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 8424490000 | 37.4% | CN | US | 官方文档 |
| 8424490000 | 37.4% | CN | US | 官方文档 |
| 3926909989 | 22.8% | CN | US | 官方文档 |
| 3926909989 | 22.8% | CN | US | 官方文档 |
| 3926909910 | 22.8% | CN | US | 官方文档 |
商品图片
AI分析
🌊 Fish Tank Air Stone (Aquarium Air Bubbler)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 1. Product Definition & Classification: What is an "Air Stone"?
An Air Stone is a porous device, typically made from porous stone, ceramic, or plastic, used in aquariums to diffuse air from an air pump into fine bubbles. This process oxygenates the water and enhances biological filtration.
In international trade, it is classified based on its material composition and function: * Functional View: It acts as a disperser for liquids/gases, potentially falling under mechanical apparatus. * Material View: It is an article of stone, ceramic, or plastic, falling under general miscellaneous articles.
⚠️ Key Distinction Point:
- If classified by function (mechanical dispersal) → 8424.49.00.00
- If classified by material (porous stone/plastic/ceramic) → 3926.90.99.89 or 3926.90.99.10
📦 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, there are three potential HS Codes for Fish Tank Air Stones, depending on the customs authority's interpretation of "function" vs. "material."
| HS Code | Product Description | Basis for Classification | Total Tax Rate |
|---|---|---|---|
8424.49.00.00 |
Mechanical Appliances for Dispensing Liquids or Powders (Other) | Functional Match: Inferred as a component for air pumps/bubble dispersion; treated as a mechanical accessory for spraying/dispersing media. | 37.4% |
3926.90.99.89 |
Other Articles of Plastic or Other Materials (Other) | Material Match: Inferred as plastic, mineral, or synthetic porous material; fits the "Other articles" catch-all for non-metallic goods. | 22.8% |
3926.90.99.10 |
Other Articles of Plastic or Other Materials (Specific Sub-category) | Material Match: Porous stone/ceramic/plastic; compatible with general laboratory/industrial/general vessel logic under "Other." | 22.8% |
🔍 Key Reminder:
- 8424.49.00.00 is the higher tax bracket (37.4%), viewed as a mechanical tool.
- 3926.90.99.89/10 is the lower tax bracket (22.8%), viewed as a simple material article (plastic/stone).
- No Material Conflict: Both categories accept non-metallic compositions, but the reasoning differs (Function vs. Material).
💰 3. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: 2025 November 10 onwards (for subsequent imports)
🎯 1. 8424.49.00.00 —— Mechanical Appliances for Dispensing Liquids/Powders
| Item | Details |
|---|---|
| Base Tariff | 2.4% (Ad Valorem) |
| Section 301 Surtax | +25.0% (Additional Tariff) |
| Section 122 Surtax | +10.0% (Specific China-related Surtax) |
| Total Tax Rate | 37.4% |
| Tax Calculation | CIF Value × 37.4% |
| De Minimis Exemption | ❌ Not Eligible (High tariff risk) |
| Legal Basis Path | USITC:8424.49.00.00 → Section 301: 25% → Section 122: 10% |
📌 Explanation:
- This classification views the air stone as a mechanical dispenser component.
- The total burden is 37.4%, significantly impacting profit margins.
- Risk: If customs interprets the item as a "mechanical part," this higher rate applies.
🎯 2. 3926.90.99.89 —— Other Articles of Plastic/Other Materials
| Item | Details |
|---|---|
| Base Tariff | 5.3% (Ad Valorem) |
| Section 301 Surtax | +7.5% (Additional Tariff) |
| Section 122 Surtax | +10.0% (Specific China-related Surtax) |
| Total Tax Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Eligible (High tariff risk) |
| Legal Basis Path | USITC:3926.90.99.89 → Section 301: 7.5% → Section 122: 10% |
📌 Explanation:
- This classification views the air stone as a porous stone/plastic article.
- The total burden is 22.8%, saving 14.6% compared to the mechanical classification.
- Advantage: Lower base rate (5.3% vs 2.4%) and lower Section 301 surtax (7.5% vs 25%).
🎯 3. 3926.90.99.10 —— Other Articles of Plastic/Other Materials (Specific)
| Item | Details |
|---|---|
| Base Tariff | 5.3% (Ad Valorem) |
| Section 301 Surtax | +7.5% (Additional Tariff) |
| Section 122 Surtax | +10.0% (Specific China-related Surtax) |
| Total Tax Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Eligible (High tariff risk) |
| Legal Basis Path | USITC:3926.90.99.10 → Section 301: 7.5% → Section 122: 10% |
📌 Note:
- Tax rate is identical to3926.90.99.89(22.8%).
- This code is often used for specific sub-categories of "other articles" in plastic/ceramic/stone.
- Strategy: Both 3926 codes are financially superior to 8424.
🛠️ 4. Customs Clearance Practical Advice (Combat Pitfall Guide)
✅ 1. Documentation Checklist (Essential)
| Document | Required | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must state material (e.g., "Porous Ceramic," "Synthetic Stone," "Plastic"). |
| ✅ Product Photos | ✔️ | Clear images showing the porous texture. Avoid images that look like "mechanical parts." |
| ✅ Commercial Invoice | ✔️ | Description: "Aquarium Air Stone - Porous Stone/Plastic Accessory." Avoid words like "Mechanical Dispenser." |
| ✅ Material Certificate | ✔️ | If possible, prove it is stone/ceramic/plastic, not a mechanical device. |
| ✅ Packing List | ✔️ | Standard packing. |
✅ 2. Declaration Tips (Key Mantras)
🔥 “Material First, Function Second, Name Simple, Tax Lower!”
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Standard Air Stone | 3926.90.99.89 or 3926.90.99.10 |
Misdeclaring as 8424.49.00.00 → 37.4% Tax |
| Packaged with Pump | Declare Air Stone separately if possible | Bundling as a "Mechanical Set" → Risk of higher tax |
| Material: Ceramic/Stone | Emphasize "Porous Material" | Calling it "Air Diffuser Part" → Risk of Mechanical Classification |
| Material: Plastic | Emphasize "Plastic Article" | Calling it "Aqua-Tech Component" → Risk of Mechanical Classification |
✅ 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Stones | Provide material specs. Avoid "custom mechanical part" language. |
| Mixed Materials | If stone core + plastic cap, clarify dominant material. Usually falls under 3926. |
| Pre-packaged Kits | If sold with an air pump, consider if the pump dictates classification. Isolated air stones are safer as 3926. |
| Customs Inquiry | If questioned, argue 3926: "It is a porous material article used for aquaculture, not a mechanical device with moving parts." |
🌍 5. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3926.90.99.89/10 |
22.8% (Total) | None specific | Avoid 8424 to save 14.6%. |
| 🇨🇳 China | 3926.90.99.89 |
~5-10% (Varies) | CCC (if applicable) | Lower tax burden domestically. |
| 🇪🇺 EU | 6903.20 (Ceramic) |
0-2.5% | CE (if electrical components) | If ceramic, EU classifies differently. |
| 🇬🇧 UK | 3926.90.90 |
~0-5% | UKCA | Post-Brexit rules may vary. |
| 🇦🇺 Australia | 3926.90.90 |
~5% | No specific | Standard import duties. |
📌 Conclusion:
- USA is the critical market with high surtaxes.
- Choosing3926over8424saves 14.6% in total duties.
- Always emphasize material (porous stone/plastic) over mechanical function.
📌 6. Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Describing the product as "Mechanical Air Dispenser Component"
👉 Result: Customs assigns 8424.49.00.00 → 37.4% Tax instead of 22.8%.
❌ Mistake 2: Using vague terms like "Aqua-Part" without material specification
👉 Result: Customs may default to higher mechanical category or request additional info → Delays.
❌ Mistake 3: Ignoring Section 122 & 301 Surtaxes
👉 Result: Underestimating landed cost by ~17.5% → Profit Loss.
❌ Mistake 4: Claiming De Minimis Exemption (Under $800)
👉 Result: Denied. High tariffs (22.8%+) generally disqualify de minimis benefits for Chinese goods under current rules.
✅ Correct Practice:
"Aquarium Air Stone, Porous Ceramic/Plastic, Used for Oxygenation, Model XYZ, Origin: China"
🎯 7. Conclusion: Professional Declaration, Save Money, Clear Fast!
🎯 Remember the Mantra:
🔹 "Material > Function, 3926 Saves 15%, 8424 Burns Cash!"
🔹 "Declare 'Porous Stone/Plastic', Not 'Mechanical Part'!"
📌 Pro Tip:
If your air stones are originating from Vietnam, Thailand, or Malaysia, you may qualify for IEEPA Exemptions or lower Section 301 rates.
Recommendation: Always apply for an Advance Ruling if shipping large volumes to the US, to lock in the 3926 classification and avoid post-import audits.
📣 Act Now:
📞 Contact a Professional Customs Broker + Provide Material Specs + Clarify "Porosity"
🚀 Let your Air Stones Clear Customs Smoothly, Reduce Costs, and Boost Profits!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Saved is Pure Profit!
用户评价
关于 HS 编码归类
协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构：
- 章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
- 品目（4 位）——章内的更具体分类
- 子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
- 本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时，适用的关税税率可能包括：
- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税
本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。