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PP Cotton Filter Cartridge – Effectively Intercepting Sediment and Rust

PP cotton filter cartridge is made of non-toxic, odorless polypropylene fiber material, featuring acid and alkali resistance and stable performance. It is commonly used as the first line of defense in water purification systems and is an indispensable core component in water purification equipment, specifically designed to filter sediment, rust, suspended solids, and other large particulate impurities in water. With its efficient, stable, and economical filtration performance, it is widely used in household, commercial, and industrial water treatment applications.

A white PP cotton filter cartridge
Category
PP cotton filter cartridges of different sizes
Melt-blown PP Cotton Filter Cartridge

Manufactured using the melt-blown process, it is made through heating, melting, spinning, drawing, and forming. It features a progressive multi-layer pore structure, with larger pores on the outer layer to capture large particles and smaller pores on the inner layer for filtering fine particles. It is seamlessly formed with no joints. It is suitable for first-stage filtration in household water purification systems and as a pre-treatment unit in commercial water purification systems.

8 string wound PP cotton filter cartridges of different sizes
String Wound PP Cotton Filter Cartridge

Manufactured using a string winding process, polypropylene fiber threads are wound tightly around a porous core. The winding tightness forms a gradient pore structure, with the inner layer being denser and the outer layer looser. The fixed wire-wound structure enhances stability, while the core support and wire-wound design enable it to withstand high water pressure. It is suitable for industrial water treatment, high-pressure filtration systems, and similar applications.

Features
  • Highly efficient at intercepting impurities. Filter rating can reach 1–50 microns, effectively removing sediment, rust, suspended solids, and other particulates.
  • Progressive structure design. A multi-layer filtration structure with a loose outer layer and tight inner layer enhances dirt-holding capacity and extends the filter cartridge's lifespan.
  • Food-grade safe material. It is free of chemical additives, strong acid and alkali resistance and meets drinking water standards, ensuring every drop of water is safer.
  • Wide compatibility. Standard size design (such as 10 inches, 20 inches, etc.) fits most water purifier brands and models on the market.
  • Economical. PP cotton filter cartridges are affordable, with a replacement time of 3–6 months. The filter cartridge is easy and quick to replace, with low maintenance costs.
Specifications
Table 1: Melt-Blown PP Cotton Filter Cartridge Specifications
Material PP
Surface FLAT / POINT / LINE / GROOVE
Height 5" / 10" / 20" / 30" / 40"
Inner Diameter 20 / 28 / 30 mm
Outer Diameter 40 / 51 / 53 / 57 / 60 / 63 / 100 / 114 mm
Weight 80–850 grams
Table 2: String-Wound PP Cotton Filter Cartridge Specifications
Material PP
Height 10" / 20" / 30" / 40"
Weight 90–1600 grams