The water filter cartridge import procedure is a category of components/parts for water filtration equipment with a considerably lighter clearance process than a complete water filtration unit, since the cartridge – as a replacement part – is not on the Group 2 goods list requiring state quality inspection like a complete unit with integrated electrical or heating components.
Not every business fully understands the water filter cartridge import procedure, especially the difference in quality inspection obligations between a cartridge (standalone part) and a complete water filtration unit, as well as the fact that used water filter cartridges are absolutely prohibited from import. An error in HS code determination, or confusion over new versus used condition, can result in the business being penalized or facing clearance delays.
In this article, 3W Logistics presents the complete water filter cartridge import procedure under the latest legal regulations and tariff schedule – from legal conditions, HS codes, tax calculation, and required documentation, through the step-by-step process and practical risks, from the perspective of a forwarder experienced in handling imported water filtration components.
1. Legal conditions for importing water filter cartridges
Water filter cartridges are not on the list of prohibited import goods if 100% new; used goods are absolutely prohibited from import. This is the key point to understand from the outset in the water filter cartridge import procedure.
| Condition | Detailed Content |
|---|---|
| State quality inspection | Water filter cartridges are not on the Group 2 goods list, so they are not subject to mandatory state quality inspection or specialized inspection upon import — unlike a complete water filtration unit with integrated electrical/heating components, which is subject to management under Decision 3810/QD-BKHCN |
| Conditions for used goods | Under Decree 69/2018/ND-CP, used water filter cartridges are on the prohibited import list; businesses may only import 100% new water filter cartridges |
| Drinking-water-contact materials | Although not subject to specialized inspection upon import, the cartridge is a part in direct contact with drinking water, so businesses trading or distributing it should proactively cross-check against food-contact material standards (in the spirit of QCVN 6-1:2010/BYT, applicable to direct drinking water) to ensure the product is safe once on the market |
| Product labeling | A Vietnamese supplementary label under Decree 43/2017/ND-CP: product name, model, cartridge material, origin, importer, and recommended shelf life/replacement interval |
Practical note: Many businesses mistakenly apply the entire quality inspection process meant for a complete water filtration unit (quality inspection registration, conformity certification, CR mark labeling) to standalone imported water filter cartridges as well — this is a common misunderstanding that causes the water filter cartridge import procedure to be unnecessarily prolonged. In fact, as a replacement component, the cartridge is not on the Group 2 goods list, so the clearance process is much simpler than for a complete filtration unit. What businesses most need to pay attention to is still accurately confirming the shipment is 100% new, since used goods are absolutely prohibited from import.
2. HS code and import tax for water filter cartridges
Water filter cartridges fall under heading 84.21 (Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases) in the Import-Export Tariff Schedule, specifically the subheading for parts of liquid-filtering machines.
| Heading/HS Code | Detailed Description | Import Tax (MFN) |
|---|---|---|
| 84.21 — Centrifuges; filtering or purifying machinery and apparatus, for liquids or gases | ||
| 8421.99.94 | Water filter cartridges for household use — the most common code when importing residential water filter cartridges (PP cartridges, activated carbon cartridges, UF cartridges, RO membranes) | 0–5% |
| 8421.99.99 | Other parts of liquid-filtering/purifying machines, used for industrial filtration systems | 0–5% |
Important note on HS codes and tax: The preferential (MFN) import tax rate for water filter cartridges under heading 8421.99.94 is currently commonly low, ranging 0-5% depending on the cartridge type (PP, activated carbon, UF, RO). For goods with a valid Certificate of Origin (C/O) from countries with an FTA with Vietnam (ASEAN, China, South Korea, Japan, EU…), import tax is typically reduced to 0%. Regarding VAT, the current rate of 8% applies through December 31, 2026 under Decree 174/2025/ND-CP; after that date, businesses should check for updated policy, as the rate may revert to the standard 10%. In the water filter cartridge import procedure, an incorrect HS code declaration can result in a fine of at least VND 2,000,000, up to three times the tax amount, under Decree 128/2020/ND-CP, so accurately determining the material, composition, and product characteristics before declaration is essential.
3. Documentation for the water filter cartridge import procedure
The documentation set for the water filter cartridge import procedure is relatively light since it is not subject to specialized management, per Circular 38/2015/TT-BTC (as amended by Circular 39/2018/TT-BTC).
| Document | When to Prepare | Important Note |
|---|---|---|
| Sales Contract | Before deposit | Clearly state the cartridge type, material, 100% new condition, and terms for providing the C/O |
| Commercial Invoice & Packing List | Before goods are shipped | Fully state the product name, model, and quantity for each cartridge type |
| Bill of Lading | After goods are loaded onto the vessel | Water filter cartridges are typically shipped in dry containers, packed in cartons |
| Catalogue/technical documentation | Before declaring the HS code | Shows material, composition, and filtration characteristics — an important basis for applying the correct HS code within heading 84.21 |
| C/O (Certificate of Origin) | Before goods are shipped | Not mandatory, but recommended to benefit from preferential FTA import tax, typically reduced to 0% |
| Electronic customs declaration (VNACCS/VCIS) | Once documentation is complete | Declare the correct HS code under heading 8421.99.94, clearly stating 100% new condition |
4. Step-by-step water filter cartridge import procedure
Step 1: Check material, characteristics, and determine the HS code
Check the water filter cartridge’s material (PP, activated carbon, UF fiber, RO membrane) and filtration characteristics, and work with the supplier to obtain a detailed catalogue, from which the correct HS code — heading 8421.99.94 or 8421.99.99 — can be determined.
Step 2: Negotiate the contract and require a C/O
Sign the water filter cartridge purchase contract, clearly stating model, material, and 100% new condition, and include a C/O requirement in the contract terms to benefit from preferential import tax.
Step 3: Prepare and submit the customs declaration
Once complete documentation is available (contract, invoice, packing list, bill of lading, C/O if applicable), enter the declaration information into the customs system via software; the declaration deadline is within 30 days from the date the goods arrive at port.
Step 4: Transport goods to a Vietnamese port
Water filter cartridges are typically shipped in dry containers, packed in sturdy cartons to prevent impact from deforming or damaging the internal filtration structure during long-distance transport.
Step 5: File the declaration and clear customs
Once the channeling result is available (green, yellow, red), bring the documentation set to the Customs Sub-Department to file the declaration within 15 days from the declaration date. Pay import tax and VAT in full to complete clearance.
Step 6: Receive goods, apply labeling, and release for circulation
After clearance, complete the required Vietnamese supplementary labeling, receive the goods, and transport them to the warehouse. Keep complete documentation on file to support post-clearance inspection if requested by customs.
5. How to calculate import tax on water filter cartridges
Water filter cartridges are not subject to special consumption tax, only import tax and VAT. As an example, for a shipment of water filter cartridges (activated carbon, RO membrane) imported from China (HS code 8421.99.94) with a CIF price of VND 250 million, comparing the case with and without a C/O:
| Tax / Cost Item | Without C/O (ordinary rate 5%) | With C/O ACFTA / MFN (0%) |
|---|---|---|
| CIF price | VND 250,000,000 | VND 250,000,000 |
| Import tax | 5% × 250M = VND 12,500,000 | 0% × 250M = VND 0 |
| VAT (8%, applicable through end of 2026) | 8% × (250+12.5)M = VND 21,000,000 | 8% × (250+0)M = VND 20,000,000 |
| Total tax payable | VND 33,500,000 (~33.5 million) | VND 20,000,000 (~20 million) |
| Savings with C/O/MFN | ~VND 13,500,000 — while not large in absolute terms for a small shipment, businesses importing regularly and in bulk should still request a complete C/O to optimize cost over the long term. | |
From 3W Logistics’ practical experience: With water filter cartridges, the most common mistake we see in the water filter cartridge import procedure is businesses not clearly distinguishing between new and refurbished goods when working with certain non-transparent suppliers — while under regulations, used water filter cartridges are absolutely prohibited from import. Carefully vetting the supplier — especially for sourcing from China, currently the most common import market for water filter cartridges — and requiring a clear commitment to 100% new condition in the contract helps businesses avoid the risk of penalties or forced re-export. — Ms. Apple, CCO, 3W Logistics
6. Common risks in the water filter cartridge import procedure
| Risk | Manifestation | Prevention |
|---|---|---|
| Confusing used/refurbished goods with new | Mistakenly importing used or refurbished water filter cartridges — absolutely prohibited from import | Require the supplier to clearly confirm 100% new condition, and carefully vet the supplier before ordering |
| Incorrect HS code declaration | Misapplying the HS code between different cartridge types, or confusing it with a part of a different device — resulting in a fine of at least VND 2,000,000, up to three times the tax amount, under Decree 128/2020/ND-CP | Clearly determine material, composition, and product characteristics via the catalogue before declaration; consult a forwarder experienced with the water filtration components category |
| Delayed preparation of original documentation | Original documents such as the C/O and original bill of lading are not ready when the vessel arrives at port, resulting in container and yard demurrage costs | Fully prepare original documentation before the vessel arrives at port, and coordinate closely with the supplier on document dispatch timing |
| Damage to filtration structure during transport | The cartridge becomes dented or the filtration membrane structure is deformed due to impact during long-distance transport | Require the supplier to package securely with standard-compliant cartons, and purchase adequate cargo insurance |
| Product label missing mandatory information | Missing material, origin, or recommended replacement interval on the Vietnamese supplementary label — customs holds the goods and requires supplementary labeling at port | Prepare a complete supplementary label sample under Decree 43/2017/ND-CP before the goods arrive at port |
FAQ – Frequently asked questions about the water filter cartridge import procedure
Question 1: What documents are required for the water filter cartridge import procedure?
The complete documentation set for the water filter cartridge import procedure includes: customs declaration; Sales Contract; Commercial Invoice; Packing List; Bill of Lading; Certificate of Origin (C/O) if available; technical catalogue if available. This is a relatively light documentation set since water filter cartridges are not subject to specialized management.
Question 2: Are water filter cartridges required to undergo quality inspection when imported?
No. Water filter cartridges are not on the Group 2 goods list, so they are not subject to state quality inspection or specialized inspection — unlike a complete water filtration unit. This is what makes the water filter cartridge import procedure considerably simpler; businesses only need to specifically note the requirement for 100% new goods.
Question 3: How many types of tax must be paid when importing water filter cartridges?
Water filter cartridges are subject to only two layers of tax: (1) Import tax calculated on the CIF price, with a standard MFN rate of 0-5% under heading 8421.99.94, potentially reduced to 0% with a valid C/O; (2) VAT, currently 8% and applicable through December 31, 2026 under Decree 174/2025/ND-CP. Water filter cartridges are not subject to special consumption tax.
Question 4: How long does the water filter cartridge import procedure take?
The total time from signing the contract to goods arriving at the warehouse is typically 12-20 days depending on the shipping route, with customs declaration and clearance taking only 1-2 days since it is not subject to specialized inspection, as long as documentation is complete when the goods arrive at port.
How does 3W Logistics support the water filter cartridge import procedure?
With experience handling a wide range of imported water filtration components, and registration as an OTI-NVOCC with an FMC Bond (Federal Maritime Commission) in the United States, 3W Logistics provides end-to-end service for businesses on the water filter cartridge import procedure — from HS code determination consulting through to goods arriving at the distribution warehouse.
Full-package logistics services at 3W Logistics:
- Consulting on accurate HS code determination based on material and filtration characteristics: Correctly classifying under subheading 8421.99.94 or .99, avoiding the risk of reclassification and penalties under Decree 128/2020/ND-CP.
- Supplier vetting and confirming 100% new condition: Helping businesses avoid the risk of mistakenly importing used or refurbished goods on the prohibited list.
- Support in calculating actual tax and optimizing preferences: Advising on obtaining the appropriate C/O to reduce import tax, and keeping up to date on the latest VAT policy.
- Expertise in transporting equipment components and parts: Ensuring proper packaging to protect the filtration structure from damage.
- Electronic customs declaration via VNACCS/VCIS and resolving issues at the border gate: Declaring the correct HS code and quickly handling any requests for additional documentation.
Why choose 3W Logistics for your imported water filter cartridge shipment? Although the water filter cartridge import procedure is simpler than many conditional goods categories, businesses still need to correctly handle HS code classification and pay particular attention to the 100% new condition requirement to avoid legal risk. We stand alongside you from HS code determination through to goods arriving at the warehouse — helping businesses shorten clearance time and avoid unnecessary added costs. Contact 3W for specific advice before signing your import contract.
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Hotline: +84 28 3535 0087
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3W LOGISTICS CO., LTD – We here serve you there!
Email: info@3w-logistics.com
Website: www.3w-logistics.com
Ms. Apple is the CCO (Chief Commercial Officer) at 3W Logistics, with over 10 years of experience in sales and business operations management.
At 3W Logistics, Ms. Apple is responsible for commercial strategy, corporate customer development, managing a team of more than 50 sales professionals, and improving business performance in the logistics sector.
With practical experience in sales management and market development, Ms. Apple shares professional insights on business logistics solutions, international transportation, freight forwarding, customer management, trade lane development, and growth strategies in the logistics industry.
