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String Wound Filter Cartridge, NSF Certified | Xincheng

Depth filtration that holds back rust, particles and sediment — NSF certified, cleared for drinking water under FDA rules, and produced in the company’s own Chinese plant.

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Official NSF certification places this cartridge among Xincheng's star products. Behind it stand 26 years of manufacturing experience, production lines automated end to end under computer control and a full testing set that follows the ISO 9001 quality framework. Ranges accepted for the programme clear SGS tests and satisfy what the US FDA asks.

Yearly capacity reaches 10 million pieces. A 10,000-unit order leaves the plant in 2 working days, so delivery seldom waits. Purchasing through direct factory sales keeps costs in check for buyers who work across borders. Industrial water treatment draws on this spun cartridge for sediment filtration, and so does general purification. Filter products sell strongly inside China, and overseas buyers take them as well; the company serves as designated supplier to many famous enterprises. Sincere, quality-led production carries on, which keeps the cartridges dependable for partners worldwide.