--- product_id: 173054397 title: "– Quantitative Filter Paper Circles, 74mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100" brand: "stonylab" price: "HK$188" currency: HKD in_stock: true reviews_count: 8 category: "Stonylab" url: https://www.desertcart.hk/products/173054397-quantitative-filter-paper-circles-74mm-diameter-cellulose-filter-paper-20 store_origin: HK region: Hong Kong --- # 74mm diameter precision 35-70 sec filtration speed 20 micron particle retention – Quantitative Filter Paper Circles, 74mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 **Brand:** stonylab **Price:** HK$188 **Availability:** ✅ In Stock ## Summary > ⚗️ Elevate your lab game with precision that professionals trust! ## Quick Answers - **What is this?** – Quantitative Filter Paper Circles, 74mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 by stonylab - **How much does it cost?** HK$188 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/173054397-quantitative-filter-paper-circles-74mm-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 - • **Rapid Filtration Speed:** Balances efficiency and accuracy with a swift 35-70 second flow. - • **Seamless Compatibility:** Optimized for StonyLab Porcelain Buchner Funnels to elevate your lab setup. - • **Precision 74mm Diameter:** Perfectly sized for consistent, reliable filtration every time. - • **Ultra-Low Ash Content ≤0.01%:** Ensures minimal residue, preserving sample purity and integrity. - • **Ultra-Fine 20 Micron Filtration:** Captures even the smallest particles for crystal-clear results. ## Overview StonyLab Quantitative Filter Paper Circles offer 74mm diameter cellulose filters with a fine 20 micron particle retention and fast 35-70 second filtration speed. Designed for high purity with ≤0.01% ash content, these filters are ideal for precise laboratory applications and perfectly compatible with StonyLab Buchner funnels, making them a must-have for efficient, professional-grade filtration. ## 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 equipment - The filter papers are fine and were delivered promptly, but they are not much use without the funnel and side arm flask that I ordered at the same time and that order has been cancelled. Review: Great for the price - For the price these are great filters. Used them for my masters project and they do what they say on the tin ## Features - Filter paper diameter: 74mm - Coarse cellulose filter papers remove particles > 20 µm - Filtration Speed: 35 – 70 sec - Ash content: ≤0.01% - Compatible with StonyLab Porcelain Buchner Funnel ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07R3Y1457 | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 37,213 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 10 in Quantitative Filter Paper | | Colour | 75mm Diameter | | Customer Reviews | 4.5 4.5 out of 5 stars (385) | | Date First Available | 25 April 2019 | | Item Weight | 42.4 g | | Item model number | SL000247 | | Manufacturer | StonyLab Scientific | | Material | Paper | | Part number | DL-FilterPaper-74mm | | Product Dimensions | 7.4 x 7.4 x 1 cm; 42.4 g | | Shape | Circle | | Size | 74 mm Diameter | ## Product Details - **Colour:** 75mm Diameter - **Brand:** stonylab - **Material:** Paper - **Sheet size:** 74 x 74 millimeters - **Recommended uses for product:** Laboratory or scientific filtration ## Images ![– Quantitative Filter Paper Circles, 74mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 - Image 1](https://m.media-amazon.com/images/I/51HUBD6Cl-L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Filter equipment *by S***Y on 23 November 2025* The filter papers are fine and were delivered promptly, but they are not much use without the funnel and side arm flask that I ordered at the same time and that order has been cancelled. ### ⭐⭐⭐⭐⭐ Great for the price *by W***M on 9 October 2019* For the price these are great filters. Used them for my masters project and they do what they say on the tin ### ⭐⭐⭐⭐⭐ Very good product *by T***N on 7 June 2020* very good quality and very quick delivery ## Frequently Bought Together - StonyLab Quantitative Filter Paper Circles, 74mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 - StonyLab Porcelain Buchner Funnel 80mm, Porcelain Buchner Filter Funnel OD 8cm ID 7.4cm for Laboratory - StonyLab Glass 500ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation, 500ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/173054397-quantitative-filter-paper-circles-74mm-diameter-cellulose-filter-paper-20](https://www.desertcart.hk/products/173054397-quantitative-filter-paper-circles-74mm-diameter-cellulose-filter-paper-20) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-04-22*