This Zanxis sintered activated carbon stick (Ф40×195 mm) is a coconut-shell carbon block water filter cartridge for water purifiers, refrigerators and coffee machines. It reduces chlorine, taste and odour, and with built-in ion exchange resin helps soften water and reduce heavy metals such as lead and mercury. It is designed for appliance brands, water purifier OEMs and distributors who need documented performance and custom sizing.
| Item | Detail |
|---|---|
| Product name | Carbon block water filter cartridge / CTO filter for water purifiers and refrigerators |
| Core filtration materials | High-iodine-value coconut shell activated carbon + food-grade ion exchange resin |
| Core performance | Softens water and inhibits scaling, adsorbs chlorine (bleach) and off-tastes/odours, intercepts harmful heavy metals such as lead and mercury |
| Precision and service life | Uniform microporous structure, high initial flow, high filtration precision with no black powder release; large adsorption capacity and long service life |
| Common reference sizes (outer diameter × length, mm) | Ф60×130 / Ф62×240 / Ф37.5×75 / Ф38×57 / Ф40×195 / Ф51×127 / Ф32×126 / Ф32×106 |
| Main end applications | Household reverse osmosis (RO) purifiers (pre-CTO/post-T33), direct drinking water dispensers, side-by-side refrigerator water filters, commercial coffee machines |
| Customisation service | Full OEM/ODM support. Length, diameter and inner/outer diameter ratios can be tooled to equipment requirements; end-cap welding customisation supported. |
| Quality certification systems | Production base certified to ISO 9001 and IATF 16949; filter media meet strict drinking-water safety and hygiene standards; CNAS-accredited testing centre for quality control |
Before specifying the Ф40×195 carbon stick, confirm the values that affect fit and performance. First, the dimensions: outer diameter 40 mm and length 195 mm are nominal references; verify the actual inner diameter, end-cap geometry and connection type against your housing drawing. Second, the filtration duty: the cartridge is intended for chlorine, taste and odour reduction, with ion exchange resin for softening and heavy-metal reduction; confirm the target reduction rates and the water quality at the point of use. Third, the operating conditions: flow rate, pressure and water temperature influence initial flow and service life, so state the expected flow and any pressure limits. Fourth, the service interval: typical life depends on water quality and flow; plan replacement based on your test data rather than a fixed calendar. Finally, compliance: confirm which drinking-water contact standards apply in your market and request the corresponding test reports and declarations.
We recommend a structured sample validation before mass production:
The cartridge is formed from high-iodine-value coconut shell activated carbon and food-grade ion exchange resin through a sintering process. The resulting microporous structure gives high initial flow, high filtration precision and no black powder release, while the large adsorption capacity supports a long service life. The ion exchange resin contributes water softening and reduction of heavy metals such as lead and mercury. Typical installations include household reverse osmosis purifiers as a pre-CTO or post-T33 stage, direct drinking water dispensers, side-by-side refrigerator water filters and commercial coffee machines. Because the carbon block is rigid, it can be adapted to different housings; we support OEM/ODM projects with custom length, diameter and inner/outer diameter ratios, and end-cap welding. The common size range listed in the parameter table is a reference; other dimensions can be tooled to your equipment.
Zanxis operates a 50,000 m² production base in Zhongshan, Guangdong, China, including six clean workshops totalling 20,000 m². Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and resistance, which supports verification of the carbon block's chlorine reduction and flow performance. Quality control follows IQC, IPQC and OQC throughout production, and the plant is certified to ISO 9001, ISO 14001 and ISO 45001, with IATF 16949 obtained in 2024. Products comply with REACH and RoHS requirements, and we can provide compliance documents. With more than 20 years of filtration R&D and manufacturing, we have developed over 1,000 filtration solutions and export to Europe, the United States, Japan and South Korea. Multiple automated production lines support monthly capacity in the millions of pieces.
To request samples of the Ф40×195 sintered activated carbon stick or a custom size, please tell us your device or vehicle model, the required size or a drawing, the airflow or water flow, the operating conditions (pressure, temperature, water quality), and the quantity you need. We will confirm the sample plan, test report and quotation. Contact us to start the verification process.
Yes. Our in-house laboratory is CNAS-accredited and can issue test reports covering filtration efficiency, dust holding capacity and resistance. For this carbon block, we can test chlorine reduction, flow, pressure drop and particle retention according to the agreed plan. Reports are provided with samples and production batches on request.
Standard samples are typically prepared within 3–5 working days, while custom dimensions may take about 10–15 working days for tooling and sample production. Validation time also depends on your in-device testing. We confirm the schedule with you before starting.
For standard carbon block sizes, the MOQ is usually 1,000–2,000 pieces, depending on specification and packaging. Custom sizes typically start at 5,000 pieces. We confirm the exact MOQ with your quotation.
Standard items can ship within 7–15 days when in stock. OEM custom orders generally take 25–35 days for mass production after sample approval. Lead time is confirmed with your order and can be scheduled for long-term supply.
Replacement depends on water quality and daily flow. As a guide, plan replacement based on your own test data for chlorine breakthrough or pressure drop. We can help set a replacement interval by reviewing your water quality and flow conditions.
Yes. We support OEM/ODM with custom outer diameter, length and inner/outer diameter ratios, and end-cap welding to match your housing. Please provide a drawing or sample so our engineering team can confirm feasibility.
Our filtration products have been exported to Europe, the United States, Japan and South Korea for over 20 years. We can provide compliance documents for REACH and RoHS. Please confirm the specific drinking-water contact standard required for your market so we can supply the relevant reports.
Yes, we can discuss a test plan aligned with your requirements, such as chlorine reduction or particle retention. Our CNAS-accredited lab can run the agreed tests and provide a report. Share your target values and we will confirm the test method and sample quantity.