---
product_id: 266425711
title: "StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter)"
brand: "stonylab"
price: "R942"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Stonylab"
url: https://www.desertcart.co.za/products/266425711-stonylab-quantitative-filter-paper-circles-125mm-diameter-cellulose-filter-paper
store_origin: ZA
region: South Africa
---

# 125mm diameter precision 35-70 sec filtration speed 20 micron particle retention StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter)

**Brand:** stonylab
**Price:** R942
**Availability:** ✅ In Stock

## Summary

> ⚡ Filter smarter, not harder — precision meets speed in every circle!

## Quick Answers

- **What is this?** StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter) by stonylab
- **How much does it cost?** R942 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/266425711-stonylab-quantitative-filter-paper-circles-125mm-diameter-cellulose-filter-paper)

## 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

- • **Bulk Pack of 100:** Cost-effective supply to keep your lab running without interruption
- • **Rapid Filtration Speed:** Filters samples in just 35 to 70 seconds, boosting lab efficiency
- • **Precision 125mm Diameter:** Fits standard lab setups with exact sizing for consistent results
- • **Minimal Ash Content ≤0.01%:** Ensures purity and minimal residue for accurate quantitative analysis
- • **Ultra-Fine 20 Micron Filtration:** Effectively removes particles larger than 20 microns for crystal-clear filtrate

## Overview

StonyLab Quantitative Filter Paper Circles offer 125mm diameter cellulose filters with a 20 micron particle retention capability, delivering fast filtration speeds between 35 and 70 seconds. With ultra-low ash content (≤0.01%), these filters ensure high purity and reliable quantitative results. Packaged in a convenient set of 100, they are ideal for professional labs seeking consistent, cost-effective filtration solutions.

## 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: good product - came quickly and my fault i got the wrong size
Review: Absolutely perfect for the price - I am not filtering anything that would require the same performance/features as say a medical counterpoint, but I can attest to the fact that this filters indeed work. I've run them singularly and in pairs through a Buchner funnel with a vacuum pump (really just a relabeled aquarium pump lol) with great success. I achieved my desired results which was the removal of fine particulates from Everclear. Be forewarned, even though StonyLab produces these filters and supposedly their Buchner funnels (mine has a stamp indicating the mm of the funnel directly above a sticker that says 'StonyLab 100mm' that is laughably crooked) these 94mm are just slightly too large to rest flat in their 100mm Buchner funnel. TL;DR - They do the job at the perfect price point.

## Features

- Filter paper diameter: 125mm
- Coarse cellulose filter papers remove particles > 20 µm
- Filtration Speed: 35 – 70 sec
- Ash content: ≤0.01%

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08NSSYTBD |
| Best Sellers Rank | #57,503 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Quantitative Lab Filter Paper |
| Date First Available | April 25, 2019 |
| Item Weight | 3.99 ounces |
| Item model number | SL000243 |
| Manufacturer | StonyLab Scientific |
| Product Dimensions | 4.92 x 4.92 x 0.39 inches |

## Product Details

- **Color:** 125mm Diameter
- **Brand:** stonylab
- **Material:** Cellulose
- **Sheet Size:** 125mm
- **Paper Finish:** Uncoated

## Images

![StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter) - Image 1](https://m.media-amazon.com/images/I/51VE25FLpvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good product
*by G***Y on November 29, 2024*

came quickly and my fault i got the wrong size

### ⭐⭐⭐⭐⭐ Absolutely perfect for the price
*by B***N on January 9, 2021*

I am not filtering anything that would require the same performance/features as say a medical counterpoint, but I can attest to the fact that this filters indeed work. I've run them singularly and in pairs through a Buchner funnel with a vacuum pump (really just a relabeled aquarium pump lol) with great success. I achieved my desired results which was the removal of fine particulates from Everclear. Be forewarned, even though StonyLab produces these filters and supposedly their Buchner funnels (mine has a stamp indicating the mm of the funnel directly above a sticker that says 'StonyLab 100mm' that is laughably crooked) these 94mm are just slightly too large to rest flat in their 100mm Buchner funnel. TL;DR - They do the job at the perfect price point.

### ⭐⭐⭐⭐⭐ Great Filter for your lab work!
*by R***A on August 11, 2022*

I use these filters in conjunction with a vacuum beaker and vacuum pump, which speeds the process!

## Frequently Bought Together

- StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter)
- StonyLab Qualitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-17*