--- product_id: 505787709 title: "WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment" brand: "wisesorb" price: "R4016" currency: ZAR in_stock: true reviews_count: 12 url: https://www.desertcart.co.za/products/505787709-wisesorb-3-4-kg-7-5-lbs-activated-alumina-reusable store_origin: ZA region: South Africa --- # Absorbs 30%+ of its weight in moisture Stable in high-temp & corrosive environments Reusable activated alumina granules WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment **Brand:** wisesorb **Price:** R4016 **Availability:** ✅ In Stock ## Summary > 💼 Stay dry, stay sharp — moisture control that means business. ## Quick Answers - **What is this?** WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment by wisesorb - **How much does it cost?** R4016 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/505787709-wisesorb-3-4-kg-7-5-lbs-activated-alumina-reusable) ## Best For - wisesorb enthusiasts ## Why This Product - Trusted wisesorb brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Exceptional crush strength and chemical stability ensure peak performance even in harsh, high-temperature or corrosive settings. - • **Versatile Protection:** Ideal for closets, electronics, sensitive equipment, and storage—protect your essentials with confidence. - • **Perfectly Sized Beads:** 3-5 mm granules maximize surface area for rapid moisture absorption without dust or mess. - • **Superior Moisture Lock:** Absorbs over 30% of its weight in water vapor at 25°C/77°F and 90% humidity, keeping your valuables dry and damage-free. - • **Eco-Friendly & Reusable:** Sustainably crafted activated alumina granules that can be reactivated and reused, reducing waste and saving you money. ## Overview WiseSorb Activated Alumina is a 3.4 kg pack of high-quality, reusable desiccant granules designed to absorb over 30% of their weight in moisture. With superior crush strength and chemical stability, these 3-5 mm beads perform reliably in high-temperature and corrosive environments, making them perfect for protecting closets, electronics, and sensitive equipment from humidity damage. ## Features - WiseSorb activated alumina is made from high-quality raw materials. Its extremely porous structure and high surface-area-to-mass ratio provide excellent crush strength as well as outstanding physical and chemical stability, even in high-temperature or corrosive environments. At 25°C/77°F and 90% relative humidity, it can absorb over 30% of its weight in water vapor. Each bead measures between 3 and 5 mm. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0B81XLQV2 | | Best Sellers Rank | 67,497 in Grocery (See Top 100 in Grocery) 363 in Disinfectant Sprays & Liquids | | Brand Name | Wisesorb | | Capacity | 3.4 kg | | Colour | White | | Customer Reviews | 4.7 4.7 out of 5 stars (365) 4.7 out of 5 stars | | Included Components | Activated Alumina | | Item Weight | 3.4 kg | | Manufacturer | Wisesorbent Technology LLC | | Material | PLA_(Polylactic_Acid), ABS_(Acrylonitrile_Butadiene_Styrene), PE_(Polyethylene) | | Model Name | 7.5lbAA-1 | | Model Number | B0B81XLQV2 | | Number Of Items | 1 | | Number Of Packs | 1 | | Operation Mode | Intermittent | | Other Special Features Of The Product | Reusable activated aluminium oxide | | Part Number | 7.5lbAA-1 | | Recommended Uses For Product | Commercial, Residential | ## Product Details - **Brand:** Wisesorb - **Capacity:** 3.4 kg - **Colour:** White - **Included components:** Activated Alumina - **Item weight:** 3.4 kg - **Material:** PLA_(Polylactic_Acid), ABS_(Acrylonitrile_Butadiene_Styrene), PE_(Polyethylene) - **Model name:** 7.5lbAA-1 - **Operation mode:** Intermittent - **Recommended uses for product:** Commercial, Residential - **Special feature:** Reusable activated aluminium oxide ## Images ![WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment - Image 1](https://m.media-amazon.com/images/I/614I2jjuKdL.jpg) ![WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment - Image 2](https://m.media-amazon.com/images/I/61ZC-qy-D9L.jpg) ![WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment - Image 3](https://m.media-amazon.com/images/I/61sdx1bfbKL.jpg) ![WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment - Image 4](https://m.media-amazon.com/images/I/71ykBzcq6GL.jpg) ![WiseSorb – 3.4 kg (7.5 lbs) Activated Alumina – Reusable Desiccant Granules, Moisture Absorber for Closets, Storage, Electronics and Sensitive Equipment - Image 5](https://m.media-amazon.com/images/I/81QWLnNnK-L.jpg) ## Available Options This product comes in different **Size Name** options. ## Questions & Answers **Q: What happens if the desiccant is dried at over 250c? if i have a precise and well controlled oven can it go higher (like 315c)?** A: heating them over the recommended temp will probably not damage them. however heating them to recharge them leaves a smell like burnt metal and mildew. I would not recommend drying it in your kitchen oven. I did and it took several days for that smell to dissipate. I moved a little toaster oven outside my house and I recharge the desiccant in small batches. very effective. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Better than silica pellets *by on Reviewed in the United Kingdom 8 March 2026* Moved to a humid climate with no a/c, so I use this in my spice cabinet. Works a dream. Powders don't clump. I also put some in a dank cupboard and it dealt with whatever smell that was. Better than silica by far. ### ⭐⭐⭐⭐⭐ Great item for keeping your 3d printer filament drier. *by on Reviewed in the United Kingdom 18 December 2025* So much better than silica beads. Absorbs more moisture and are very difficult to break.I put them in reusable tea bags and pop a couple in a vacuum sealed bag with the filament. ### ⭐⭐⭐⭐⭐ fantastic drying agent. *by on Reviewed in the United Kingdom 1 December 2025* Sooo much better than regular desiccant . Reduced the humidity in my AMS to 10% and stayed there for a month, ## Frequently Bought Together - Wisesorb 7.5 LBS Activated Alumina, Alumina Desiccant, Reusable Desiccant Dehumidifier - 2 Pack Mini Digital Hygrometer Thermometer Gauge, Indoor Outdoor Temperature Humidity Meter for Greenhouse Humidors Incubators Reptile Terrarium Jars, Fahrenheit (℉) or Celsius(℃) (2) - Powder Shaker with Lid,Stainless Steel Fine Mesh Shaker, for Sifter Cocoa,Cinnamon Powder,Icing Sugar,Chocolate Coffee (Small-12Pcs) --- ## 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.co.za/products/505787709-wisesorb-3-4-kg-7-5-lbs-activated-alumina-reusable](https://www.desertcart.co.za/products/505787709-wisesorb-3-4-kg-7-5-lbs-activated-alumina-reusable) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-17*