Designed for high-capacity, high-performance filtration in reverse osmosis and industrial water treatment systems, this 40-inch 5-micron polypropylene (PP) melt blown sediment filter cartridge delivers excellent dirt-holding capacity and stable depth filtration. It offers long service life and consistent performance in pre-filtration stages for residential, commercial, and industrial liquid filtration.

The PP Melt Blown Sediment Filter Cartridge is constructed using 100% pure polypropylene resin, thermally bonded without binders or adhesives. Its gradient pore structure enables true depth filtration, trapping larger particles on the surface and finer particles deeper within the media.
The 40-inch length and 5-micron rating make this filter ideal for high-flow applications and long-lasting RO pre-treatment. Its robust design removes sediment, rust, particulates, and other suspended solids, protecting downstream membranes and equipment.
Filtration Type: Nominal depth filtration
Micron Rating: 5 µm (nominal)
Length: 40 inches
Outer Diameter: 63 mm (standard), 115 mm (Big blue filter)
Core Material: 100% melt blown PP
Compatibility: Fits standard 40" filter housings
Application: Ideal for RO pre-filtration and industrial liquid filtration
Parameter | Specification |
Product Name | 40" 5 Micron PP Melt Blown Sediment Filter |
Filtration Media | Melt Blown Polypropylene (PP) |
Micron Rating | 5 µm (Nominal) |
Length | 40" |
Diameter (Standard) | OD: 63 mm, ID: 30 mm |
Diameter (Jumbo) | OD: 115 mm, ID: 30 mm |
Max Operating Temp | 80°C (176°F) |
Max Differential Pressure | 3.0 bar (43.5 psi) |
Recommended Flow Rate | Up to 2 m³/h (based on application) |
Replacement Cycle | Every 6–10 months or when pressure drops |
✅ True Depth Filtration
Three-zone gradient density traps particles throughout the media depth, not just on the surface.
✅ High Dirt-Holding Capacity
The 40-inch length supports extended use with fewer replacements.
✅ Stable & Reliable Pre-Filtration
Protects RO membranes, UF modules, and downstream filters from clogging.
✅ Low Pressure Drop
Optimized melt-blown structure ensures high flow rates with minimal resistance.
✅ Chemical Compatibility
Inert polypropylene media resists acids, alkalis, and organic solvents.
✅ No Binder or Adhesive
Thermal bonding process avoids extractables and ensures consistent quality.
✅ Universal Fit Design
Fits most 40" filter housings with DOE or customized end caps.
✅ Reverse Osmosis Systems (RO):
Acts as the first line of defense, removing sediment and large particulates to prevent membrane fouling.
✅ Industrial Water Treatment:
Used in boiler feedwater, cooling water, and wastewater recycling processes.
✅ Food & Beverage Processing:
Clarifies water used in brewing, bottling, and ingredient preparation.
✅ Chemical Filtration:
Pre-filters for corrosive liquids, acids, solvents, and emulsions.
✅ Electronics & Semiconductor:
Removes particles from ultrapure process water and cooling fluids.
✅ Pharmaceutical & Biotech:
Used in non-critical water pre-treatment systems to protect sterile filtration stages.
✅ ISO and FDA-compliant manufacturing standards
✅ Suitable for OEM and private label solutions
✅ Available in standard and jumbo formats
✅ Proven performance in global filtration systems
✅ Long-lasting and economical
Micron Ratings: 1, 5, 10, 25, 50, 75, 100 µm and more
Lengths: 10", 20", 30", 40"
Outer Diameter: 63 mm (standard), 115 mm (jumbo)
End Caps: DOE, 222, 226, with or without fin
Gasket/O-ring: Silicone, EPDM, Viton, NBR
Thousands of users worldwide rely on our melt blown filters for water purification, beverage production, and membrane pre-treatment. Whether you're building an industrial filtration skid or servicing a commercial RO plant, our filters are built to deliver.
📦Bulk orders available
🛠OEM customization support
🔬Free sample testing upon request
📩Contact us now for price and datasheet