--- product_id: 544799814 title: "Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags" brand: "wisesorb" price: "R2381" currency: ZAR in_stock: true category: "Wisesorb" url: https://www.desertcart.co.za/products/544799814-wisesorb-7-5-lbs-4a-molecular-sieve-premium-quality-desiccant store_origin: ZA region: South Africa --- # Fast adsorption speed 20 reusable resealable zip bags Operates down to -20°C Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags **Brand:** wisesorb **Price:** R2381 **Availability:** ✅ In Stock ## Summary > 💧 Stay dry, stay sharp — the ultimate moisture defense for pros. ## Quick Answers - **What is this?** Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags by wisesorb - **How much does it cost?** R2381 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/544799814-wisesorb-7-5-lbs-4a-molecular-sieve-premium-quality-desiccant) ## 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 - • **Rapid Moisture Lockdown:** Absorbs over 17% of its weight in water vapor at room temp for unbeatable dryness. - • **Reactivatable & Long-Lasting:** Simply bake at 550°C to renew—sustainability meets efficiency. - • **Extreme Temperature Resilience:** Performs flawlessly from -20°C to 25°C, perfect for any environment. - • **Eco-Friendly & Dust-Free Packaging:** Nonwoven zip bags combine durability with breathable, reusable design. - • **Bulk Capacity with Precision Control:** 7.5 lbs of premium 4A molecular sieve in an easy-pour container with dual handles. ## Overview The Wisesorb 7.5 LBS 4A Molecular Sieve is a premium desiccant designed for rapid and efficient moisture absorption, capable of trapping molecules smaller than 0.4nm. It operates effectively in extreme temperatures down to -20°C and comes with 20 reusable, eco-friendly nonwoven zip bags for versatile storage. Its bulk packaging features an easy-pour dual-handle container, and the sieve can be reactivated by high-temperature baking, ensuring long-term usability and sustainability. ## Description Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags: desertcart.com: Industrial & Scientific ## Features - 【7.5 LBS 4A MOLECULAR SIEVE with 20pcs Nonwoven Zip Bags】: 7.5lbs molecular sieve utilize premium quality raw material. The 4A molecular sieve has a fast adsorption speed. With the capability of absorbing molecules with a diameter of no more than 0.4nm. At 77℉/25°C, RH20% it can absorb more than 17% of of its weight in water vapor. IT can also be used in extremely low temperatures of -4℉/-20°C. Each granule is 1.5-2.5mm in size. 20pcs Unisel Nonwoven Zip Bags. Holds about 100g beads. - 【Eco-friendly Material, Dust Free, Sealing Strip Design, Reusable and Durable】: Zip lock storage bags are made of high-quality Nonwoven which is different from normal plastic poly and aluminum foil material. Good heat sealing properties, excellent air permeability, high tensile strength and tear strength. It can applied for desiccant packaging for its excellent moisture penetration properties. - 【EASY-TO-POUR】: Our easy-pour container offers both capacity and control. The multi-pound volume holds a generous number of desiccant beads that is easy to carry and pour thanks to a unique handle design. The dual-handle design accommodates multiple hand positions for better maneuverability and control. - 【REACTIVE】: The 4A molecular sieve granules can be placed in a muffle furnace and baked at 550 ° C (1020°F) for 3 hours, then transferred to a drying cylinder, and cooled to room temperature for use. 【HOW TO USE】: Place 4A molecular sieve granules into an enclosed storage space, until it needs to be replaced. - 【BULK BEADS WEIGHT】: 1 gallon of 7.5 LBS. Do not use them for drying flowers; You can place the beads inside fine mesh food straining bag, mesh bag, T-Sac tea filters, tea bags, drawstring organza bag, muslin bag, mason jar, dryer containers, knee high nylon stockings, clear plastic storage bin, mesh laundry bags or women's hosiery. Even make your own bags and size them to the specific use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C2325DJV | | Date First Available | April 11, 2023 | ## Images ![Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags - Image 1](https://m.media-amazon.com/images/I/71Its+F+rIL.jpg) ## Frequently Bought Together - Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material with 20pcs Resealable Nonwoven Zip Bags - Dry & Dry [2 LBS] Blue Indicating Silica Gel Beads Desiccants (Industry Standard 3-5 mm) - Reusable Desiccant Beads Silica Beads(Blue to Pink) - BIQU PC4-M10 Pneumatic Connector Fittings Bowden Tube Coupler Male Straight PTFE Tube Push for E3D-V6 Bowden Extruder Compatible with Ender-3 Ender-3 V2 3D Printers (Pack of 10pcs) --- ## 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/544799814-wisesorb-7-5-lbs-4a-molecular-sieve-premium-quality-desiccant](https://www.desertcart.co.za/products/544799814-wisesorb-7-5-lbs-4a-molecular-sieve-premium-quality-desiccant) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-27*