Damai’s composite filter cartridges are advanced multi-layer filtration elements that combine the benefits of multiple filter media, such as melt-blown PP, activated carbon, nonwoven fabric, and pleated layers, into a single cartridge. These cartridges are designed to deliver multi-functional filtration, including sediment removal, odor and chlorine reduction, and organic contaminant adsorption.

By integrating different media types in one structure, Damai composite filters reduce the need for multiple filtration stages, saving space and improving system efficiency. We offer tailored solutions for OEM partners and distributors requiring custom composite configurations for specific filtration needs.

Technical Specifications

Media Composition: Customizable

Outer Layer: Melt-blown polypropylene (PP)

Middle Layer(s): Activated carbon (GAC or ACF), pleated membrane, or resin

Inner Layer: PP core support (Customizable）.

Micron Ratings: 1µm, 5µm, 10µm, or custom (nominal or absolute)

Length Options: 5″, 10″, 20″, 30″, 40″

Outer Diameter: 2.5″, 4.5″ (Big Blue)

Inner Diameter: 1.1″

End Caps: DOE, 222/flat, 222/fin, 226/flat, customized fittings

Maximum Temperature: 80°C (depending on material combination)

Flow Rate: Up to 8 GPM (based on configuration)

Customization: All internal components, layers, and materials can be tailored. Damai supports full OEM and ODM filter cartridges and flexible configurations for bulk and private label orders.

Advantages of Multi-layer filter cartridge

Multi-Stage Filtration in One Cartridge: Removes particulates, odors, chlorine, organics, and some bacteria.

Space-Saving and Cost-Efficient: Reduces the need for multiple housing or stages.

Highly Customizable Design: Mix and match media for your specific process or market.

Extended Lifespan: Composite design prevents clogging and ensures even flow distribution.

Enhanced Water Quality: Ideal for both pre-treatment and point-of-use systems. The design flexibility of composite filters makes them a highly versatile option across commercial and industrial filtration systems

Industry Applications

Damai composite cartridges are ideal for situations where comprehensive filtration is required within a limited footprint. Common applications include:

Household & Commercial Drinking Water Systems: Taste, odor, chlorine, and sediment removal

Food & Beverage Manufacturing: Filtering process water and improving ingredient quality

Pharmaceutical Pre-Filtration: Removing particles and organics before fine filtration stages

Electronics and Semiconductor Plants: Multi-step cleaning in ultrapure water systems

Chemical & Cosmetic Industries: Reducing organics and particles in product formulations. They are particularly useful in compact systems like countertop purifiers, vending machines, and medical equipment.

Custom Composite Filter Solutions

Damai’s composite filters are modular and configurable. You can choose:

The sequence and thickness of layers (e.g., PP → carbon → pleated membrane)

Media types (GAC, ACF, ion exchange resin, etc.)

Cartridge size, color, and packaging

Special functionalities: Anti-bacterial coating, mineralization, deionization, etc.

Let Damai filter help you design the most efficient composite filtration solution for your application or product line.