TaxTMI 
TaxTMI 
2026 (7) TMI 261
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....cant, M/s FSP Technologies, is engaged in the business of manufacturing/ importing and supplying filter cartridges that serve as replaceable components for filtering or purifying machinery and apparatus for liquids or gases. These cartridges are marketed and sold specifically as parts or accessories for industrial filtration systems in sectors such as water treatment, gas purification, solvent and chemical processing, steam filtration, and pharmaceutical manufacturing. The applicant imports these cartridges for onward distribution to end-users and maintenance providers of various filtration equipment. 3. Product Description: Filter Cartridges: The products in question are fully assembled filter cartridges designed to be inserted into filtering/purifying devices (filter housings, industrial filter units, etc.) to remove impurities from fluids (liquids or gases). Each cartridge is a finished, functional filtration unit comprising a filter medium encased in a supporting structure, with end-caps or fittings that allow it to be mounted into the filtration apparatus. There are two main categories of such filter cartridges imported by the applicant: (a) Polymeric Medi....
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....tions (such as specific types of end caps, O-rings, bayonet mounts, threaded connectors, etc.). 5. The commercial identity of the goods is that of filter cartridges for filtering machines - they are marketed as such to industrial customers, rather than as raw materials. In trade parlance, these products may also be referred to as "filter elements" or "filter modules," but always in the context of a finished part that is used in filtration devices (as opposed to bulk filter media). 6. Need for Advance Ruling - Classification Issue: The applicant has observed that Customs authorities at different ports have not been uniform in classifying such filter cartridges. In some instances, Customs assessments have treated these cartridges as miscellaneous articles of the predominant constituent material - for example, classifying a polymer-based cartridge under Chapter 39 (plastics, e.g. Tariff 3926.90 for other plastic articles), a paper/fiber-based cartridge under Chapter 48 (paper pulp articles, e.g. Tariff 4823.90), or a textile-fiber cartridge under Chapter 59 (textile fabrics for technical uses, e.g. Tariff 5911.90). Similarly, metal-based cartridges have sometimes been classified....
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....paratus - without these cartridges, the filtration machines cannot perform their purifying function (indeed, the media contained inside the cartridges physically trap contaminants). Thus, on first principles, these cartridges fall within the scope of "parts" of filtering or purifying machinery as described in heading 8421. 8.3 Explanatory Notes Distinction - "Filters" vs "Filtering Elements": The Harmonized System Explanatory Notes (ENs) to heading 84.21 provide further clarity on the scope of parts. Notably, the EN to 84.21 (as also summarized in CBEC Circular No. 24/2013-Customs dated 27/06/2013) enumerates examples of parts (e.g. filter press plates, filter frames, etc.) but draws a crucial distinction for certain simple filtering elements. It expressly states: "It should be noted, however, that filter blocks of paper pulp fall in heading 48.12 and that many other filtering elements (ceramics, textiles, felts, etc.) are classified according to their constituent material." In other words, basic filtering elements made entirely of paper, textile, ceramic, etc., when imported separately, are to be classified in accordance with their material composition (e.g. as paper articles, ....
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....would also lead to inconsistent results: for example, cartridges with very similar function and design would fall under different chapters solely because one uses a polymer membrane and another uses a metallic mesh, which is a material-based distinction irrelevant to their function as machine parts. The uniform approach, consistent with the Tariff scheme, is to classify all such cartridges under 8421.99.00 as parts of filtering machines, which also aligns with the explanatory guidance that complete filters are to be treated as parts of the machine (heading 84.21). 8.6 Distinguishing the Applicant's Goods from "Filtering Elements" in Circular 24/2013: The applicant is aware of CBEC Circular No. 24/2013, which might superficially appear to direct classification of "elements of filters" by their constituent materials. It is crucial to interpret that circular in context. The "filter elements" addressed in the circular are those that lack an identity as a distinct mechanical part - e.g., a filter block made of paper pulp, or a ceramic candle filter, or rolls of filter fabric. The subject filter cartridges differ on multiple counts: (a) Each cartridge is an assembly of va....
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....edia alone (unmounted filter material). Significantly, CBP agreed that the fully assembled filter cartridge belongs in heading 8421, specifically subheading 8421.39 for air filters, concurring that it is a part of dust filtration equipment. In contrast, the pleated filter media packs (item 2), which were essentially filter paper cut to shape, were classified as articles of paper under Chapter 48 (subheading 4823.20.9000, HTSUS, as filter paper). This dual outcome underscores the same distinction drawn by the CBEC circular: a complete filter unit (cartridge with supports, ready to use in a machine) is classified under 84.21, whereas an unassembled filtering element (just the paper medium) is classified by its material. The applicant's products correspond to the former category (like item 1 in the US ruling, i.e. complete cartridges), not the latter. These rulings, being based on the Harmonized System, which applies in indian Customs context also, reinforce that the proper classification for the subject goods is under the parts provision of the filtering apparatus heading (8421), rather than under disparate material-based headings. 10. Avoiding Misclassification and Ensurin....
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....mation / document before disposal of this application or as may be instructed, for assistance in disposal of this application. 12. Further, the applicant vide his additional submission dated 04.02.2026 submitted that: 12.1. As per the construction and the design, the article under application consists of two specifically designed porus filter tubes of specific diameters containing between them a filtering element media of material different then such cylindrical tubes. The article is sealed with the caps and any loose fitting would defeat the use as filter part. The full assembly is designed to be mounted into a steel/fiber chamber using installation hardware such as caps with threads or other required fittings. The product design is to confirm its sole and principle use in filtering machinery and apparatus of CTH 8421. 12.2 The physical construction, engineering complexity and the functional integration of the imported articles are well beyond a basic filter medium. The article is not merely a sheet or block of filtration material but a fully assembled application specific component that integrates- a. Filtration media b. Mechanical support frame work ....
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....2.7 The applicant enclosed the write up on the construction of article with cross sections diagrams is enclosed with these submissions along with dismantle samples of the goods. 12.8 In view of the above submissions, the applicant humbly prays that the Hon'ble Authority may kindly issue the advance ruling on classification of classification of imported filter cartridges under CTH 8421.99.00 presently and under 8421.99.90 w.e.f. 1/5/2026 as per Schedule IV to Finance Bill 2026. 13. The applicant vide its additional submission dated 04.02.2026 further submitted as below: 13.1 As per the construction and the design, the article under application consists of two specifically designed porus filter tubes of specific diameters containing between them a filtering element media of material different then such cylindrical tubes. The article is sealed with the caps and any loose fitting would defeat the use as filter part. The full assembly is designed to be mounted into a steel/ fiber chamber, using installation hardware such as caps with threads or other required fittings. The product design is to confirm its sole and principle use in filtering machinery and apparatus of CTH 84....
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.... Authority may kindly issue the advance ruling on classification of classification of imported filter cartridges under CTH 8421.99.00 presently and under 8421.99.90 w.e.f. 1/5/2026 as per Schedule IV to Finance Bill 2026. Port of Import and reply from concerned jurisdictional Commissionerate 14. The applicant in their CAAR-1 indicated that they intend to import the subject goods i.e. filter cartridges at the jurisdiction of Office of the Commissioner of Customs (NS-V), Nhava Sheva, Maharashtra. The application was forwarded to the Office of the Commissioner of Customs, (NS-V), Nhava Sheva, Maharashtra for their comments vide letter dated 27.11.2025, 22.12.2025, 14.01.2026 and 02.02.2026. However, no comments in the matter were received till date. Details of Hearing 15. A hearing was held on 04.02.2026 at 11:30 AM. Shri Anil Kumar Mishra and Shri Rahul Dalal appeared for the PH in the matter. They reiterated the contention filed with the application that the subject goods are filter cartridges (replacement cartridges for filtering or purifying machinery for liquid or gases) and that the subject goods are not simply "filtering element" but a "part of filtering ma....
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.... The pictorial representation Sealed Capsule filters with filter media with above mentioned filter media and its components submitted by the applicant are as follows: iii) Metallic Media Filter Cartridges-Components and its material details are as follow: a) Machine Cut Outer and inner Cage manufactured of slitted steel and seamlessly welded as perforated cylinder - Stainless Steel OR Nickel Alloy OR Hastelloy Various Lengths with outer diameter 65mm. b) Pleated Wire Mesh-5, 10, 15 or 20 Micron size Stainless Steel OR Nickel Alloy OR Hastalloy. c) Top and Bottom Caps Stainless Steel. OR Nickel Alloy OR Hastelloy; welded with outer and inner tube. d) Gaskets-Silicon Rubber The pictorial representation Plastic Cartridges with above mentioned filter media and its components submitted by the applicant are as follows: 16.3 It was also submitted with humility that manufacturing process, child components identification of such finished manufactured articles and their Child- Child individual components such as gasket rings, plastic injection molded inner/outer cage, pleated media, machined components of metallic cartridges or plas....
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.... for installation and operation within designated filtration systems. 17.5 The construction of the goods reveals that the filtering media is permanently incorporated within the supporting framework, with the entire assembly designed for direct installation and operation in filtering equipment. The goods are imported and marketed as replacement filter The subject goods comprise filtration media permanently integrated with end caps, support structures, seals, and mounting interfaces, forming complete filter elements designed for installation in specific filtration systems. The goods are not presented as bulk filter media but as finished and identifiable filtration assemblies. The supporting and sealing components are essential for the functioning of the cartridge within the filtration apparatus, and the goods are marketed and traded as replacement filter elements or filter cartridges. Their design and dedicated use establish their identity as parts suitable for use solely or principally with filtering or purifying machinery of Heading 8421. 17.6 The applicant has submitted that the subject goods are classifiable under CTH 8421 more specifically under tariff item 8421.99.00 (whi....
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....ent that classification of parts is determined through a sequential application of clauses (a), (b) and (c). Clause (a) applies where the part is itself covered by a specific heading of Chapters 84 or 85. If not, clause (b) requires classification with the machine for which the part is solely or principally designed. 17.10 The subject goods are not complete filtering or purifying machines of Heading 8421. Nor are they independently classifiable under any other heading of Chapter 84 or Chapter 85. They are specifically engineered filtration cartridges designed for insertion into filtration systems. Their dimensions, sealing arrangements, end connections, support structures and filtration ratings are predetermined according to the filtration equipment in which they are used. Accordingly, clause (a) of Note 2 does not apply. 17.11 The next question is whether the goods satisfy the requirements of Note 2(b). I find that the cartridges are suitable for use solely or principally with filtering or purifying machinery of Heading 8421. The goods have no independent commercial utility outside such filtration systems. They are designed and manufactured to function as replaceable filtrat....
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....filters ;. chassis, frames and plates for filter presses; rotary drums for liquid or gas filters; baffles and perforated plates, for gas filters." The Notes further state: "It should however be noted that filter blocks of paper pulp fall in heading 48.12 and that many other filtering elements (ceramics, textiles, felts, etc.) are classifiable according to their constituent material." 17.18 The HSN therefore recognizes two distinct categories: (i) structural or mechanical parts of filters and purifiers, and (ii) filtering elements or filtering media presented separately, which are generally classified according to their constituent material. The Notes make it clear that classification under Heading 8421 is not displaced merely because a filtration article contains filtering media. 17.19 In the present case, the imported goods are not presented as standalone filtering media, membranes, fabrics, felts, ceramic elements, metallic meshes, or other constituent filtering materials. Nor are they imported as generic materials capable of wider use. Rather, they are complete replacement filter cartridges comprising filtration media permanently integrated....
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.... cartridges designed solely or principally for use with filtering or purifying machinery, are appropriately classifiable under Heading 8421 and merit classification under tariff item 8421 99 00 as parts thereof. Relevance of Foreign Rulings Relied Upon by the Applicant 17.25 The applicant has relied upon U.S. CBP Rulings NY N317718 and NY N322517 in support of classification under Heading 8421. While such rulings are not binding under the Indian Customs Tariff, they may be considered as persuasive guidance in interpreting the Harmonized System. 17.26 A perusal of the cited rulings indicates that classification was determined having regard to the nature, construction, and degree of completeness of the imported article. The rulings recognize the distinction between standalone filter media or filter elements and complete filtration units designed for direct use in filtration systems. 17.27 In the present case, the subject goods are not imported as unmounted filtering media or constituent filtering materials. They are complete filter cartridges/modules comprising filtering media integrated with supporting structures, end caps, seals, and other components necessary for perfo....