What is a PP melt blown filter cartridge?

A PP melt blown cartridge is made from polypropylene microfiber, created through a melt-blown process. It provides deep filtration with high dirt-holding capacity.

What micron ratings are available?

We offer PP melt blown cartridges in 1, 5, 10, 20, and 50 micron ratings to suit different filtration requirements.

What are the standard sizes?

Standard sizes include 10-inch, 20-inch, 30-inch, and 40-inch lengths with 2.5-inch outer diameter. Custom sizes are available for OEM orders.

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PP Melt Blown Filter Cartridge

Name: PP Melt Blown Filter Cartridge
Brand: Jingze Water
Availability: InStock
Rating: 4.8 (50 reviews)

Deep gradient density polypropylene microfiber - Model: JZ-PP Series

Your RO Membranes Keep Fouling? Here's the Fix

The Problem

RO membranes clog within weeks, replacement cartridges are expensive, and system downtime hurts production. Standard filters don't capture enough sediment before water reaches the RO.

Our Solution

PP melt blown with gradient density — coarse outer layer captures large particles, fine inner traps down to 1 micron. Drop-in replacement for any standard housing. Extends RO membrane life by up to 3x.

Best For

RO pretreatment in desalination, bottled water plants, pharmaceutical purified water, food & beverage, and industrial cooling systems.

Results

RO cleaning cycles extended from 2 weeks to 3 months. Cartridge cost reduced by 40%. One Indonesian plant saved 8,000/year on membrane replacements.

Length (Nominal)

10" (250 mm) / 20" (500 mm) / 30" (750 mm) / 40" (1000 mm)

Outer Diameter (OD)

2.5" (63 mm) -- standard; 4.5" (115 mm) Big Blue available

Inner Diameter (ID)

1.1" (28 mm) -- standard

Tolerance

Length: +/-2 mm / OD: +/-1 mm

Micron Ratings (Nominal)

1μm, 5μm, 10μm, 20μm, 50μm, 100μm

Initial Pressure Drop

<0.05 bar (10" cartridge at rated flow)

Max Differential Pressure

3.4 bar (50 psi) at 25 °C

Recommended Max DP for Replacement

2.0 bar (30 psi)

Dirt Holding Capacity

~200-500 g (20" 5μm, depending on feed water)

Filtration Efficiency

>99% at rated micron (single-pass)

Filter Media

100% Virgin Polypropylene (PP) microfiber

Core Material

PP (standard) / SS304 (optional)

End Cap Material

PP (UV-stabilized)

FDA Compliance

Available on request (21 CFR 177.1520)

Applications

RO Pretreatment Drinking Water Chemical Filtration Industrial Process Bottled Water Pharmaceutical

PP melt blown filter cartridge is a depth filter made from 100% virgin polypropylene microfibers with gradient density structure. The outer layer captures larger particles while inner layers trap finer contaminants, providing high dirt holding capacity and long service life. Widely used for RO pre-filtration, drinking water systems, chemical filtration, and industrial process water treatment. Available in micron ratings from 1 to 100 microns.

Key Features

Gradient Density Structure -- Outer coarse to inner fine for maximum dirt holding
100% Virgin PP -- No recycled materials, consistent quality
High Dirt Holding -- Up to 500g per 20-inch cartridge at 5 micron
Wide Compatibility -- Fits standard 10", 20", 30", 40" housings
Multiple End Caps -- DOE, SOE-222, SOE-226, and custom options
FDA Grade Available -- 21 CFR 177.1520 compliant on request

Shop by Micron Rating and Length

The same cartridge is made in different micron ratings and lengths for different duties. If you already know what you need, go straight to the specification page:

MICRON

5 micron — RO pre-treatment

MICRON

10 micron — heavy sediment

LENGTH

20 inch — higher flow

LENGTH

40 inch — high volume