Our sintered activated carbon rods are made from high-quality coconut shell activated carbon powder and food-grade binders through high-temperature sintering, featuring high porosity and large specific surface area, effectively removing residual chlorine, odors, organic matter, VOCs, and some heavy metal ions from water. The typical filtration precision can reach 5 microns, with a lifespan of about 6-12 months under rated flow (depending on incoming water quality and usage volume). This specification (Ф32*106mm) is widely applicable for household water purifiers, countertop drinking machines, front filters for commercial coffee machines, small RO reverse osmosis systems, and more. All products undergo performance testing at Cleantop's CNAS-recognized testing center to ensure reliable and accurate parameters.

Cleantop's water purification products have obtained authoritative certifications such as NSF, EPA, and BSC1 in the United States and Europe. The activated carbon raw materials and binders used meet food-grade safety standards and do not contain harmful substances such as bisphenol A. We also hold ISO 9001, 14001, and 45001 certifications, and have added IATF16949 and GMP for medical supplies in 2024, ensuring that products comply with international drinking water safety standards from raw materials to finished products. If clients have specific market certification needs, we can assist with compliance certification applications for target markets.

We have over 20 years of experience in R&D and manufacturing of filtration products and possess comprehensive OEM/ODM service capabilities. Customization can be made according to client requirements: 1) Size specifications (outer diameter, inner diameter, length); 2) Filtration precision (1μm, 5μm, 10μm, etc.); 3) Activated carbon material (coconut shell carbon, coal-based carbon, fruit shell carbon, etc.); 4) Additional features (KDF composites, lead removal, antibacterial, etc.); 5) Cap structure and interface forms; 6) Independent packaging, color boxes, logo printing, manuals, and other branding packaging. Our R&D team can provide custom samples within 7-15 days.

Cleantop occupies a 50,000㎡ area, with 20,000㎡ of clean workshops, effectively avoiding particulate contamination and microbial pollution during production, which is crucial for drinking water products. We have established a three-tier quality control system from the inspection of raw materials upon entry to the online monitoring of production processes and full inspection of finished products before leaving the factory. The national-level CNAS-recognized testing center we built can perform full performance testing including flow rate, pressure drop, TOC removal rate, residual chlorine removal rate, particulate retention, and burst pressure, ensuring consistent parameters for each batch of products to meet clients' strict volume control requirements.

The standard model sintered activated carbon rod usually has a MOQ of 1000-2000 pieces, depending on product specifications and packaging requirements; for customized models, a MOQ of 5000 pieces is recommended. In terms of delivery, standard products in stock can ship within 7-15 days; the mass production lead time for OEM-customized orders is generally 25-35 days. We have our own factory in Zhongshan, Guangdong, with flexible production scheduling for long-term cooperation clients, and can arrange VMI inventory or batch delivery to ensure your supply chain stability.

Purchasers are welcome to apply for samples for testing and verification. For standard specifications (such as Ф32*106), we can usually provide 3-5 free samples, with clients only needing to cover international shipping costs; for customized specification samples, a certain sampling fee may be charged depending on development complexity, which can be refunded after a bulk order. Samples come with a testing report issued by the CNAS testing center for clients to verify performance. We also support third-party laboratory testing, demonstrating our confidence in product quality.

Choose Cleantop's five core advantages: 1) **Industry Experience**: Established in 2002, with over 20 years focused on air and water filtration, accumulating thousands of filtration solutions; 2) **Scale Strength**: 50,000㎡ factory + 20,000㎡ clean workshop, sufficient production capacity to ensure timely delivery; 3) **Testing Capability**: Self-built CNAS national-accredited laboratory with internationally recognized test data; 4) **Comprehensive Certifications**: Multiple international certifications including NSF, EPA, BSC1, ISO, IATF16949, GMP, with products sold to North America, Europe, and Japan; 5) **Flexible Customization**: Full-chain OEM/ODM support from product structure to brand packaging, assisting clients in quickly entering target markets.