--- product_id: 197290567 title: "AFM activated filter material, filter glass grade 1" brand: "dryden aqua" price: "HK$3121" currency: HKD in_stock: false url: https://www.desertcart.hk/products/197290567-afm-activated-filter-material-filter-glass-grade-1 store_origin: HK region: Hong Kong --- # Filtration sharpness ~1 micron Made from 100% recycled glass Grain size 0.4-0.8 mm precision AFM activated filter material, filter glass grade 1 **Brand:** dryden aqua **Price:** HK$3121 **Availability:** ❌ Out of Stock ## Summary > ♻️ Elevate your filtration game with AFM: Cleaner water, greener planet, smarter choice! ## Quick Answers - **What is this?** AFM activated filter material, filter glass grade 1 by dryden aqua - **How much does it cost?** HK$3121 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/197290567-afm-activated-filter-material-filter-glass-grade-1) ## Best For - dryden aqua enthusiasts ## Why This Product - Trusted dryden aqua brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Chic Sustainability:** Crafted from recycled glass, aligning with your green values - • **Universal Compatibility:** Seamlessly fits all pressure & gravity sand filters—upgrade without hassle - • **Hydrophobic Surface Tech:** Repels water to boost filtration efficiency and reduce disinfectant use - • **Certified Quality Assurance:** ISO 9000:2008 certified and compliant with UNE-EN 12904 European standards - • **Next-Gen Filtration Precision:** Sharp 1 micron filtration outperforms traditional sand by 300%+ ## Overview Dryden Aqua’s AFM Grade 1 activated filter material is a cutting-edge replacement for traditional sand in all sand filters. With a grain size of 0.4-0.8 mm and filtration sharpness down to 1 micron, it delivers 30%+ better performance, reducing disinfectant needs. Made from 100% recycled glass and certified to European and ISO standards, AFM offers superior particle removal, hydrophobic surface technology, and universal compatibility for pressure and gravity filters—perfect for professionals demanding efficiency and sustainability. ## Description Original Dryden Aqua AFM next generation activated filter glass grade 1 (grain size 0.4 - 0.8 mm)What is AFM ng (Next Generation)AFM filter glass is a modern filter medium for replacing filter sand in pressure and gravity sand filters. Compared even with high-quality filter sand, AFM has much better application properties. Changing from sand to AFM results in a significant performance increase in your filtration system. AFM is made from recycled glass by Dryden Aqua, and is also a valuable contribution to environmental sustainability. Only AFM complies with the European standard UNE-EN 12904. AFM is produced by Dryden Aqua, a ISO 9000:2008 certified manufacturer.AFM stands for activated filter material and replaces the sand or glass sand of your filter. It improves filter performance by at least 30% compared to quartz or glass sand and thus reduces the need for disinfectants. The new AFM ng has a hydrophobic surface and improves its filtration sharpness from 4 micron to 1 micronAFM Grade 1 is a complete replacement for sand in all pressure or gravity sand filters. In all applications that Dryden Aqua has tested over a period of 5 years, AFM has proved to be the superior filter agent compared to high-quality sand. Under controlled conditions of a flow rate of 10 m³/h, sand removes around 90% of all particles up to a size of 10 and Under the same conditions, AFM Grade 1 leads to a reduction in particle size to 1 u! This proves that AFM removes significantly smaller particles from the water. For the removal of solids through physical processes, AFM also has a negative surface charge, which allows the removal of small particles and organic components through surface absorption. AFM is ideal for removal ## Features - Grain size: 0.40 - 0.80 mm - Grade: 1 piece. - Filtration sharpness: approx. 1 micron - Compatibility: all sand filters and disinfection methods - Use: improved filter material for sand filter ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01B5KWJM0 | | Benefits | Improves filter performance and removes smaller particles | | Best Sellers Rank | 391,387 in Garden ( See Top 100 in Garden ) 260 in Pool & Hot Tub Filters | | Brand Name | Dryden Aqua | | External Testing Certification | NSF | | Global Trade Identification Number | 04260456780147 | | Item Dimensions D x W x H | 40D x 60W x 4H centimetres | | Item Weight | 21 Kilograms | | Manufacturer | Dryden Aqua | | Manufacturer Part Number | 39012158 | | Material Type | Glass | | Model Number | 11939 | | Number of Items | 1 | | Set Name | Grade 1 | | Unit Count | 1 Count | ## Product Details - **External testing certification:** NSF - **Item weight:** 21 Kilograms - **Material:** Glass - **Product benefits:** Improves filter performance and removes smaller particles - **Product dimensions:** 40D x 60W x 4H centimetres ## Images ![AFM activated filter material, filter glass grade 1 - Image 1](https://m.media-amazon.com/images/I/61VsjGjQpRS.jpg) ![AFM activated filter material, filter glass grade 1 - Image 2](https://m.media-amazon.com/images/I/81iPPs4SIBS.jpg) ![AFM activated filter material, filter glass grade 1 - Image 3](https://m.media-amazon.com/images/I/713zPWXb1rS.jpg) ## Frequently Bought Together - Dryden Aqua AFM activated filter material, filter glass grade 1 - Dryden Aqua Grade Green Grade 2 AFM green --- ## 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/197290567-afm-activated-filter-material-filter-glass-grade-1](https://www.desertcart.hk/products/197290567-afm-activated-filter-material-filter-glass-grade-1) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-04-22*