--- product_id: 511954799 title: "Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs)" brand: "zenpore" price: "S$0" currency: SGD in_stock: false reviews_count: 5 category: "Ze Npore" url: https://www.desertcart.sg/products/511954799-filter-paper-7-cm-lab-qualitative-filter-paper-for-chemistry store_origin: SG region: Singapore --- # Fast flow rate 15-20s/10ml Standard 70mm diameter discs Coarse retention 20-25μm Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) **Brand:** zenpore **Price:** S$0 **Availability:** ❌ Out of Stock ## Summary > 🧪 Filter smarter, flow faster — don’t let your lab fall behind! ## Quick Answers - **What is this?** Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) by zenpore - **How much does it cost?** S$0 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/511954799-filter-paper-7-cm-lab-qualitative-filter-paper-for-chemistry) ## Best For - zenpore enthusiasts ## Why This Product - Trusted zenpore brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value Pack:** 100 discs per pack—because your lab deserves premium quality without frequent reordering. - • **Rapid Filtration Power:** Experience ultra-fast flow for efficient lab workflows without compromising quality. - • **Versatile Lab Essential:** Perfect for biological samples, organic extracts, and even winemaking filtration needs. - • **Trusted Quality Standard:** Equivalent to Whatman Grade 4, made from high alpha-cellulose cotton for consistent performance. - • **Precision Particle Capture:** Retains coarse and gelatinous precipitates ensuring clean, reliable filtrates every time. ## Overview ZENpore’s 7cm Grade 4 Qualitative Filter Paper offers fast-flow filtration with coarse particle retention (20-25μm), ideal for routine lab clarifications, biological sample clean-up, and winemaking. Each pack contains 100 high-quality 70mm discs made from pure alpha-cellulose cotton, delivering reliable, Whatman-equivalent performance for professionals demanding efficiency and precision. ## Description GRADE 4 STANDARD Qualitative Filter Paper Equivalent to Whatman grade 4, this very fast laboratory filter paper is used for coarse filtration when you need to separate a solid or precipitate from the filtrate.Made from high alpha-cellulose cotton, this standard lab filter is not intended for ashing.APPLICATIONSscience : Routine clean-up of insoluble liquids such as biological fluids or organic extracts in labsfood : Determination Sodium Chloride in foodstuffsbeverage : Filtration of musts in winemetalurgy : Determination of silicon impurities in pig iron and steelenvironment : Fast flowing air and exhausts monitoring when the collection of fine particles is not critical.COARSE RETENTIONRetains coarse particles and gelatinous precipitates like:Metal hydroxides (Al, Cr, Fe, Mg) , Be OxideInsoluble iron and ore, precipitated SilicatesCulture media, and colloidal sedimentspaper : pure cotton celluloseflow : fastretention : 20~25 μm (coarse)speed : 15~20 s (10ml DIN 53137)size : ⌀ 70 mmthickness : 140 μmweight : 86 g/m²ash : 0.1%qty : 100 discsPLAIN-DISCSThese Flat Discs are suitable for gravity and Buchner low suction vacuum filtration.The same affordable filters are also available funnel-ready as ST004-70q (folding) or ST004-70v (pleating).EQUIVALENCE & SIZESee the cross-reference table and size diagrams in the photos to choose the appropriate reference and diameter of your circles. Review: Works with precision. - YES! THANK YOU!! I have just found my way through a ridiculous situation with StonyLab using these filters. StonyLab has an issue with proper sizing and uniformity that they are simply unwilling to address. Now I use their competitor's filters and everything thus far is AWESOME. Thank you all for taking yourselves seriously and producing a proper product! Will buy again. Would recommend to a friend. Review: PAPEL DE FILTRO ZEMPORE - Objeto recibido acorde a lo solicitado ## Features - GRADE 4 : 7cm - Equivalent to Whatman qualitative grade 4, standard lab filter paper (70mm) - FAST PRE-FILTER - Quickly clean-up biological samples and organic extracts, routine clarification - WINE MAKING - Filtration of musts - HIGH AIR FLOW COLLECTION - Collect large particulate in fast moving air or fumes - COARSE RETENTION / FAST FLOW - Retains coarse and gelatinous precipitates (20~25 micron) ## Technical Specifications | Specification | Value | |---------------|-------| | Are Batteries Included | No | | Asin | B07M6QJ2JX | | Best Sellers Rank | #217,722 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #92 in Qualitative Filter Paper | | Brand | ZENpore | | Country Of Origin | USA | | Customer Reviews | 4.6 4.6 out of 5 stars (222) 4.6 out of 5 stars | | Date First Available | 24 May 2021 | | Item Dimensions Lxwxh | 7.3 x 7.3 x 2 Centimeters | | Item Height | 20 Millimeters | | Item Model Number | ST004-70 | | Item Weight | 40 g | | Item Width | 7.3 Centimeters | | Manufacturer | Fluted Filter | | Model Number | ST004-70 | | Number Of Memory Sticks | 100 | | Product Dimensions | 7.3 x 7.3 x 2 cm; 40 g | ## Images ![Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) - Image 1](https://m.media-amazon.com/images/I/71jw8aWr37L.jpg) ![Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) - Image 2](https://m.media-amazon.com/images/I/81kGAjMJ5uL.jpg) ![Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) - Image 3](https://m.media-amazon.com/images/I/91ysRcH3cnL.jpg) ![Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) - Image 4](https://m.media-amazon.com/images/I/71zST0pKpjS.jpg) ![Filter Paper 7 cm Lab Qualitative Filter Paper for Chemistry, Standard Qualitative Grade 4-Fast Flow 70mm(100 Discs) - Image 5](https://m.media-amazon.com/images/I/71MVWGEQTfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with precision. *by E***I on 9 June 2026* YES! THANK YOU!! I have just found my way through a ridiculous situation with StonyLab using these filters. StonyLab has an issue with proper sizing and uniformity that they are simply unwilling to address. Now I use their competitor's filters and everything thus far is AWESOME. Thank you all for taking yourselves seriously and producing a proper product! Will buy again. Would recommend to a friend. ### ⭐⭐⭐⭐⭐ PAPEL DE FILTRO ZEMPORE *by J***A on 6 January 2026* Objeto recibido acorde a lo solicitado ### ⭐⭐⭐⭐⭐ Buon prodotto *by C***E on 10 November 2025* Buoni per filtrazione veloci in laboratorio --- ## 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.sg/products/511954799-filter-paper-7-cm-lab-qualitative-filter-paper-for-chemistry](https://www.desertcart.sg/products/511954799-filter-paper-7-cm-lab-qualitative-filter-paper-for-chemistry) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-26*