2-Pack Melt-Blown Polypropylene (PP Cotton) Replacement Filter Cartridges for Under-Sink Water Purification Systems，Dimensions: 20 X 4.3 Inches(1 Micron)

This PP cotton filter cartridge boasts a high water flow rate, and its internal sedimentation filter withstands intensive use without clogging after just a few weeks. It features a three-layer gradient structure, with a smooth outer surface significantly increasing the contact area. It offers two filtration precision options: 1 micron and 5 micron, allowing you to choose the appropriate cartridge based on your water quality.Specifications:Product Name: 20-inch PP Cotton Filter CartridgeSize: 20 inches x 4.3 inchesFiltration Precision: 1 micron/5 micronInlet Water Pressure: 0.1-0.4 MPaReplacement Cycle: Recommended 3-6 monthsSuitable Water Source: Municipal Tap WaterQuantity: 2 cartridges per pack

• Suitable for various water quality needs: For finer filtration, choose the 1-micron version—effectively filtering tiny particles. If your water contains more sediment, choose the 5-micron version. Both are compatible with 20-inch filter cartridge housings.
• Three-layer gradient structure: The outer layer is loose and breathable, filtering large particles; the middle layer is denser, filtering medium-sized particles; and the inner layer is even finer, blocking even the smallest particles. Therefore, the filter cartridge is less prone to clogging, maintaining a stable flow rate for longer.
• Flat brushed surface: The flat brushed design allows water to make fuller contact with the filter cartridge surface. This means higher flow rates and greater dirt-holding capacity—purifying more water between cartridge changes, even in high-water-consumption households.
• Internal spiral thread structure: The internal spiral thread structure of the filter cartridge increases the filtration surface area and enhances mechanical strength. Combined with a reinforced inner core, the filter cartridge will not deform even under high pressure and high-intensity use—ensuring durability and consistent performance.
• Both the inner and outer parts are made of food-grade polypropylene: The entire filter element is made of food-grade polypropylene and can be used for drinking, cooking, and home or commercial water filtration equipment.