---
product_id: 148565407
title: "Qualitative Filter Paper Circles, 46mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100"
brand: "stonylab"
price: "E£ 1835"
currency: EGP
in_stock: true
reviews_count: 13
category: "Stonylab"
url: https://www.desertcart.com.eg/products/148565407-qualitative-filter-paper-circles-46mm-diameter-cellulose-filter-paper-20
store_origin: EG
region: Egypt
---

# 46mm diameter precision 35-70 sec filtration speed 20 micron particle retention Qualitative Filter Paper Circles, 46mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100

**Brand:** stonylab
**Price:** E£ 1835
**Availability:** ✅ In Stock

## Summary

> ⚗️ Elevate your lab game with precision filters that never slow you down!

## Quick Answers

- **What is this?** Qualitative Filter Paper Circles, 46mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 by stonylab
- **How much does it cost?** E£ 1835 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/148565407-qualitative-filter-paper-circles-46mm-diameter-cellulose-filter-paper-20)

## Best For

- stonylab enthusiasts

## Why This Product

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

## Key Features

- • **Versatile & Durable:** Compatible with aqueous solutions, solvents, and acids—built for daily lab rigor.
- • **Rapid Filtration Speed:** Streamline your workflow with fast 35-70 second filtration cycles.
- • **Low Ash Content ≤0.15%:** Ensures minimal residue, preserving sample purity and accuracy.
- • **Precision-Cut 46mm Circles:** Perfectly sized for consistent, reliable filtration every time.
- • **Ultra-Fine 20 Micron Retention:** Captures even the smallest particulates for crystal-clear results.

## Overview

StonyLab’s 46mm qualitative cellulose filter paper offers precise 20 micron particle retention with a fast 35-70 second filtration speed and ultra-low ash content (≤0.15%). Designed for versatile use in vacuum filtration and Buchner funnels, this pack of 100 filters delivers consistent, contamination-free results ideal for professional labs and research environments.

## Description

Our Lab accessories are supplementary items designed to support and enhance laboratory work. Common examples include rubber stoppers, clamps, tubing, and stands, which are used to connect, secure, or stabilize laboratory equipment and setups. These accessories help ensure safe, efficient, and organized experimentation in scientific, educational, or research environments.

Review: filter good ice cream also good..cigarettes bad - Buchner funnels are indispensable tools in chemistry laboratories, widely employed for vacuum filtration. One crucial component that enhances their efficiency is the paper filter. These filters play a pivotal role in the separation of solids from liquids, offering a range of benefits that significantly contribute to the success of various scientific experiments. Enhanced Filtration Efficiency One of the primary advantages of utilizing paper filters in Buchner funnels is the notable improvement in filtration efficiency. The porous structure of paper filters allows for the efficient retention of solid particles while facilitating the passage of liquid through the filter. This ensures a faster and more effective separation process, saving valuable time in the laboratory. Precise Particle Retention Paper filters exhibit a remarkable ability to retain particles of different sizes with precision. This is particularly important in experiments where the separation of specific particle sizes is critical. The controlled porosity of paper filters enables scientists to tailor their filtration processes according to the requirements of their experiments, ensuring accurate and reliable results. Reduced Risk of Contamination The use of paper filters in Buchner funnels helps minimize the risk of contamination in experimental samples. The high-quality materials used in manufacturing these filters, such as cellulose or glass microfiber, provide a clean and inert environment for the filtration process. This is especially crucial in sensitive experiments where even trace contaminants can skew results. Compatibility with a Variety of Substances Paper filters are versatile and compatible with a wide range of substances, making them suitable for diverse laboratory applications. Whether filtering aqueous solutions, organic solvents, or suspensions, paper filters exhibit stability and effectiveness across different chemical environments. This versatility makes them a go-to choice for scientists working with various substances in their research. Ease of Use and Convenience The simplicity of incorporating paper filters into Buchner funnels adds to their appeal. The filters are readily available, easy to handle, and require minimal preparation. This convenience not only streamlines laboratory procedures but also enhances the overall user experience. Researchers can focus on the scientific aspects of their work without being burdened by complicated filtration processes. Cost-Effectiveness From an economic standpoint, paper filters offer a cost-effective solution for laboratory filtration. Compared to some alternative filtration methods, the affordability of paper filters makes them an attractive choice for researchers working within budget constraints. This cost-effectiveness does not compromise the quality of results, making paper filters a practical and efficient option for a wide range of scientific applications. Conclusion In conclusion, the integration of paper filters into Buchner funnels brings about a myriad of benefits that significantly contribute to the success of laboratory experiments. From enhanced filtration efficiency and precise particle retention to reduced contamination risks and versatility across different substances, paper filters prove to be indispensable tools in the scientific toolkit. Their ease of use, cost-effectiveness, and overall convenience further underscore their importance in facilitating successful and reliable filtration processes in the realm of laboratory research.
Review: Great filters , great value! - These 56mm filters fit perfectly in a CoorsTek 60240 porcelain buchner funnel. I could not get them to fit with Stonylab porcelain buchner filters. They work best with cold water extractions, from my experience, but i have used water alcohol mixtures, solvents such as chloroform, and vacuum filtration of small amounts of concentrated acids, and they seem to hold up well. They work well for filtering fine charcoal, and other fine particulates. I use them almost daily!

## Features

- Filter paper diameter: 46mm
- Coarse cellulose filter papers remove particles > 20 µm
- Filtration Speed: 35 - 70 sec
- Ash content: ≤0.15%
- Warranty: 1-Year Limited Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R4V8CMW |
| Best Sellers Rank | #15,229 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Qualitative Lab Filter Paper |
| Date First Available | April 24, 2019 |
| Item Weight | 0.536 ounces |
| Item model number | SL000275 |
| Manufacturer | StonyLab Scientific |
| Product Dimensions | 1.81 x 1.81 x 0.39 inches |

## Product Details

- **Material:** Cellulose
- **Brand:** stonylab
- **Color:** 46mm Diameter
- **Capacity:** 60 Milliliters
- **Wide End Diameter:** 46 Millimeters

## Images

![Qualitative Filter Paper Circles, 46mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 - Image 1](https://m.media-amazon.com/images/I/51IEz9Ck40L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ filter good ice cream also good..cigarettes bad
*by L***L on December 26, 2023*

Buchner funnels are indispensable tools in chemistry laboratories, widely employed for vacuum filtration. One crucial component that enhances their efficiency is the paper filter. These filters play a pivotal role in the separation of solids from liquids, offering a range of benefits that significantly contribute to the success of various scientific experiments. Enhanced Filtration Efficiency One of the primary advantages of utilizing paper filters in Buchner funnels is the notable improvement in filtration efficiency. The porous structure of paper filters allows for the efficient retention of solid particles while facilitating the passage of liquid through the filter. This ensures a faster and more effective separation process, saving valuable time in the laboratory. Precise Particle Retention Paper filters exhibit a remarkable ability to retain particles of different sizes with precision. This is particularly important in experiments where the separation of specific particle sizes is critical. The controlled porosity of paper filters enables scientists to tailor their filtration processes according to the requirements of their experiments, ensuring accurate and reliable results. Reduced Risk of Contamination The use of paper filters in Buchner funnels helps minimize the risk of contamination in experimental samples. The high-quality materials used in manufacturing these filters, such as cellulose or glass microfiber, provide a clean and inert environment for the filtration process. This is especially crucial in sensitive experiments where even trace contaminants can skew results. Compatibility with a Variety of Substances Paper filters are versatile and compatible with a wide range of substances, making them suitable for diverse laboratory applications. Whether filtering aqueous solutions, organic solvents, or suspensions, paper filters exhibit stability and effectiveness across different chemical environments. This versatility makes them a go-to choice for scientists working with various substances in their research. Ease of Use and Convenience The simplicity of incorporating paper filters into Buchner funnels adds to their appeal. The filters are readily available, easy to handle, and require minimal preparation. This convenience not only streamlines laboratory procedures but also enhances the overall user experience. Researchers can focus on the scientific aspects of their work without being burdened by complicated filtration processes. Cost-Effectiveness From an economic standpoint, paper filters offer a cost-effective solution for laboratory filtration. Compared to some alternative filtration methods, the affordability of paper filters makes them an attractive choice for researchers working within budget constraints. This cost-effectiveness does not compromise the quality of results, making paper filters a practical and efficient option for a wide range of scientific applications. Conclusion In conclusion, the integration of paper filters into Buchner funnels brings about a myriad of benefits that significantly contribute to the success of laboratory experiments. From enhanced filtration efficiency and precise particle retention to reduced contamination risks and versatility across different substances, paper filters prove to be indispensable tools in the scientific toolkit. Their ease of use, cost-effectiveness, and overall convenience further underscore their importance in facilitating successful and reliable filtration processes in the realm of laboratory research.

### ⭐⭐⭐⭐⭐ Great filters , great value!
*by K***R on May 31, 2022*

These 56mm filters fit perfectly in a CoorsTek 60240 porcelain buchner funnel. I could not get them to fit with Stonylab porcelain buchner filters. They work best with cold water extractions, from my experience, but i have used water alcohol mixtures, solvents such as chloroform, and vacuum filtration of small amounts of concentrated acids, and they seem to hold up well. They work well for filtering fine charcoal, and other fine particulates. I use them almost daily!

### ⭐⭐⭐⭐⭐ Worked well for me.
*by D***S on December 11, 2025*

Worked well for me.

## Frequently Bought Together

- StonyLab Qualitative Filter Paper Circles, 46mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100
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- QWORK 1000ML Buchner Funnel Kit Filter Flask Set, 1L Vacuum Flask 80mm Funnel, Borosilicate Glass Heavy Wall Filtering Flask

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-03-21*