---
product_id: 210770432
title: "Polyester Felt (PESP4S) Filter Bag, Size#4, 4\" x 14\", 5 Micron, 2 Pack"
brand: "duda diesel"
price: "RM81"
currency: MYR
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.my/products/210770432-polyester-felt-pesp4s-filter-bag-size-4-4-x-14
store_origin: MY
region: Malaysia
---

# 4" x 14" Size 2 Pack Value 5 Micron Precision Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack

**Brand:** duda diesel
**Price:** RM81
**Availability:** ✅ In Stock

## Summary

> 💧 Filter Like a Pro: Elevate Your Filtration Game!

## Quick Answers

- **What is this?** Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack by duda diesel
- **How much does it cost?** RM81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/210770432-polyester-felt-pesp4s-filter-bag-size-4-4-x-14)

## Best For

- duda diesel enthusiasts

## Why This Product

- Trusted duda diesel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Filtration:** Experience 5-micron precision for superior liquid clarity.
- • **Compact & Lightweight:** Weighing only 2.4 ounces, it's easy to handle and store.
- • **Nonstick PTFE Surface:** Innovative Teflon membrane allows for easy cleaning and maintenance.
- • **Versatile Applications:** Ideal for various filtration needs, from industrial to home use.
- • **Durable Polyester Construction:** Crafted from high-quality polyester for long-lasting performance.

## Overview

The Polyester Felt (PESP4S) Filter Bag is a high-performance filtration solution designed for precision and durability. Measuring 4" x 14" with a 5-micron rating, this two-pack of filter bags features a nonstick PTFE membrane for easy cleaning, making it perfect for both industrial and home applications. Weighing just 2.4 ounces, it's lightweight and easy to use, ensuring you achieve optimal liquid clarity effortlessly.

## Description

All filtration and screening involves limiting the passage of various sized solids by means of a barrier or fabric or media. This is done in two ways, by depth filtration using graded density material called felt or by surface filtration using filament woven material called mesh. Woven bags in turn have two basic varieties: multi-filament and monofilament. In any application, variables such as flow volume, solids loading, shape and density of contaminants and other factors make this an inexact science. A general description of separation methods of media is helpful.

## Features

- General Introduction to Liquid Filtration: All filtration and screening involves limiting the passage of various sized solids by means of a barrier or fabric or media. This is done in two ways, by depth filtration using graded density material called felt or by surface filtration using filament woven material called mesh. Woven bags in turn have two basic varieties: multi-filament and monofilament. A general description of separation methods of media is helpful.
- FELT: This is a filtration media made from a matrix of small fibers. One side is heat bonded to provide a uniform surface free of fiber loss. Contaminant particles are contained within the media by impingement and entrapment. "Porosity" is defined by nominal micron ratings (1, 5,10,25,50,100,200) indicating the largest particle that can pass through, in general, and reflecting an increase in the density.
- PTFE MEMBRANE SURFACE FELT: This is a filter media having a "Teflon" micro-porous membrane applied to a base of polyester felt. This results in a nonstick surface which allows for a contaminant "cake" to build and slough off or be removed by cleaning.
- PEMU - MULTIFILAMENT MESH FABRIC (POLYESTER): This is a two-dimensional square-woven fabric used for light filtration and general purpose screening. Consistently woven using a given number of threads per inch, its filaments are comprised of small fibers, twisted into threads. It is generally made of polyester polymer. "Porosity" is defined in broad divisions of hole size, measured in microns (i.e. 100, 150, 250, 400, 600, 800)
- A two-dimensional square of woven mesh fabric used for lower solids or higher accuracy screening and classification of solids. Made from a smooth uniform, one piece extruded thread woven into a screen with high accuracy and consistency. Used for exact separation. "Porosity" is defined by a hole size in microns, with greater variety than multi-filaments (i.e. 25, 50, 75, 100, 120, 150, 175, 200, 250, 300, 400, 500, 600, 800).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Duda Diesel |
| Model Info | FilterBagPESP4S-0005um-QTY02 |
| Item Weight | 2.4 ounces |
| Product Dimensions | 14 x 7 x 0.7 inches |
| Country of Origin | China |
| Item model number | FilterBagPESP4S-0005um-QTY02 |
| Part Number | PESP4S:25x2 |
| Color | White |
| Material Type | Polyester |
| Included Components | No |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack - Image 1](https://m.media-amazon.com/images/I/41ARElTfPcL.jpg)
![Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack - Image 2](https://m.media-amazon.com/images/I/41wszCDl4PL.jpg)
![Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack - Image 3](https://m.media-amazon.com/images/I/41LnX--onJL.jpg)
![Polyester Felt (PESP4S) Filter Bag, Size#4, 4" x 14", 5 Micron, 2 Pack - Image 4](https://m.media-amazon.com/images/I/3134kuxt5LL.jpg)

## Available Options

This product comes in different **Size, Number of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great for filtering cloudy water on a reef tank
  

*by J***N on Reviewed in the United States on July 16, 2015*

I used these for a few days after I moved my reef tank over to a larger size.  These work very well at taking out the small particles, thus cleaning up the water pretty quickly.  I just swapped them out every few hours (as needed) for the first day, then once a day for a few days.  Eventually I went to the 200 micron socks that I normally use.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great product
  

*by S***S on Reviewed in the United States on December 2, 2013*

I put this on my intake of my above ground pool. You would not believe how much tiny particles it takes out of the water.While vacuuming my pool some amounts of dirt would come back into the pool. This bag took care of that problem.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    It is what it is.
  

*by K***R on Reviewed in the United States on July 12, 2017*

It arrived on time nice package. Worked ok. Read other reviews on seam issues Held it sideways just to test. My application needs smaller sized microns but for pregilter this one works

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-28*