--- product_id: 715587280 title: "Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate" brand: "roundup" price: "S$158" currency: SGD in_stock: true reviews_count: 5 category: "Roundup" url: https://www.desertcart.sg/products/715587280-roundup-dual-action-365-weed-and-grass-killer-12-mo store_origin: SG region: Singapore --- # 12-month weed prevention Visible results in hours Rainproof in 30 minutes Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate **Brand:** roundup **Price:** S$158 **Availability:** ✅ In Stock ## Summary > 🌿 Dominate your landscape with 12 months of unstoppable weed control! ## Quick Answers - **What is this?** Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate by roundup - **How much does it cost?** S$158 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/715587280-roundup-dual-action-365-weed-and-grass-killer-12-mo) ## Best For - roundup enthusiasts ## Why This Product - Trusted roundup brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Expansive Coverage:** One 32 fl. oz. bottle covers up to 1,600 sq. ft., perfect for driveways, patios, and non-lawn areas. - • **Broad-Spectrum Power:** Targets clover, dandelion, crabgrass, poison ivy, and more — total control over unwanted growth. - • **Year-Long Weed Defense:** Kills & prevents tough weeds and grasses for up to 12 months, ensuring your outdoor spaces stay pristine. - • **Rapid Rainproof Formula:** Rainproof protection activates in as fast as 30 minutes, so your treatment won’t wash away. - • **Professional-Grade Concentrate:** Mix and spray with precision for spot treatment or full-area control — the ultimate weapon against weeds. ## Overview Roundup Dual Action 365 is a concentrated weed and grass killer that delivers fast, rainproof results and prevents new weed growth for up to 12 months. Designed for non-lawn areas like driveways and patios, it covers up to 1,600 sq. ft. per bottle and targets a wide range of tough weeds including crabgrass, poison ivy, and dandelions, making it a professional-grade solution for lasting outdoor weed control. ## Description Roundup® Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate provides one-step weed protection for up to 12 months. This weed control kills and prevents many types of tough weeds and grasses for up to 12 months, including clover, dandelion, large and smooth crabgrass, poison ivy, and other broadleaf weeds, grassy weeds and brush. It is rainproof in as fast as 30 minutes and produces visible results in hours. Use Roundup® Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer where you want to kill existing weeds AND prevent new weeds for up to 1 year, such as cracks and crevices in driveways, sidewalks, and walkways, patios, paths, and under decks, gravel areas, and other non-lawn areas. Mix the concentrate according to label directions and spot treat or spray evenly each gallon of spray solution over 300 sq. ft. with a tank sprayer. Please note, to prevent new weeds and grasses from growing, YOU MUST SPRAY THE ENTIRE AREA you want to control, NOT JUST the emerged weeds. One 32 fl. oz. bottle makes up to 5.3 gallons (see booklet for mixing instructions) and covers up to 1,600 sq. ft. Review: Works - Good product, couldn't do without it. Works like a charm. Kills grass and weeds. Review: AN ABSOLUTE WEED-KILLING SUPERWEAPON - Let me tell you something. This Roundup 365 is not a product. It is a FORCE. A WORK OF POWER. Maybe the greatest weed destroyer ever created on American soil. People are calling it a weed killer, but honestly it should have a RANK. It should be a GENERAL. Maybe even a FOUR STAR. We sprayed it ONE TIME on our gravel driveway. One mission. Single operation. The weeds were gone. Not dead. Not wilted. Gone. Vanished. It was like watching a SPECIAL FORCES STRIKE. Fast. Clean. No survivors. Very professional. We followed the directions exactly. Mixed the concentrate with water like true PATRIOTS. Pumped the sprayer. Took aim. Fired. And the weeds surrendered instantly. You could practically hear them saying, “Sir, please, we cannot handle this level of STRENGTH.” Too bad. This is WAR. Other weed killers pretend to be tough. They talk a big game. But this one delivers TOTAL DOMINANCE. It wipes the ground so clean it looks like it was liberated by a joint task force. If you want a product that WINS and does not negotiate, this is the one. Great power. Great precision. Great AMERICAN ENERGY. Five stars. Would deploy again. ## Features - Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate provides one-step weed protection for up to 12 months - Our weed control kills and prevents many types of tough weeds and grasses for up to 12 months, including clover, dandelion, large and smooth crabgrass, poison ivy, and other broadleaf weeds, grassy weeds and brush - Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate is rainproof in as fast as 30 minutes and produces visible results in hours - Use this weed preventer where you want to kill existing weeds AND prevent new weeds for up to 1 year, such as cracks and crevices in driveways, sidewalks, and walkways, patios, paths, and under decks, gravel areas, and other non-lawn areas - Mix Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate according to label directions and spot treat or spray evenly each gallon of spray solution over 300 sq. ft. with a tank sprayer ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7YN87VJ | | Active Ingredients | Triclopyr;Triethylamine Salt;Fluazifop-P-Butyl;Imazapic;Ammonium Salt;Diquat Dibromide | | Brand | Roundup | | Brand Name | Roundup | | Coverage | 1600 square feet | | Customer Reviews | 4.6 out of 5 stars 999 Reviews | | EU Spare Part Availability Duration | 12 Months | | Global Trade Identification Number | 00070183000357 | | Included Components | Roundup - 5378106 | | Item Form | Spray | | Item Highlight | Weed Killer Concentrate, Kills & Prevents for up to 1 Year, 32 fl.oz. | | Item Type Name | Weed & Grass Killer | | Item Weight | 227 g | | Item form | Spray | | Item weight | 227 g | | Liquid Volume | 32 Fluid Ounces | | Liquid volume | 32 Fluid Ounces | | Manufacturer | Scotts Miracle-Gro | | Model Number | 5378106 | | Part Number | 5378106 | | UPC | 070183000357 | | Unit Count | 32.0 Milliliters | ## Product Details - **Active Ingredients:** Triclopyr;Triethylamine Salt;Fluazifop-P-Butyl;Imazapic;Ammonium Salt;Diquat Dibromide - **Brand:** Roundup - **Item form:** Spray - **Item weight:** 227 g - **Liquid volume:** 32 Fluid Ounces ## Images ![Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate - Image 1](https://m.media-amazon.com/images/I/6145wxLNNtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works *by E***I on 22 August 2026* Good product, couldn't do without it. Works like a charm. Kills grass and weeds. ### ⭐⭐⭐⭐⭐ AN ABSOLUTE WEED-KILLING SUPERWEAPON *by J***K on 24 November 2025* Let me tell you something. This Roundup 365 is not a product. It is a FORCE. A WORK OF POWER. Maybe the greatest weed destroyer ever created on American soil. People are calling it a weed killer, but honestly it should have a RANK. It should be a GENERAL. Maybe even a FOUR STAR. We sprayed it ONE TIME on our gravel driveway. One mission. Single operation. The weeds were gone. Not dead. Not wilted. Gone. Vanished. It was like watching a SPECIAL FORCES STRIKE. Fast. Clean. No survivors. Very professional. We followed the directions exactly. Mixed the concentrate with water like true PATRIOTS. Pumped the sprayer. Took aim. Fired. And the weeds surrendered instantly. You could practically hear them saying, “Sir, please, we cannot handle this level of STRENGTH.” Too bad. This is WAR. Other weed killers pretend to be tough. They talk a big game. But this one delivers TOTAL DOMINANCE. It wipes the ground so clean it looks like it was liberated by a joint task force. If you want a product that WINS and does not negotiate, this is the one. Great power. Great precision. Great AMERICAN ENERGY. Five stars. Would deploy again. ### ⭐⭐⭐⭐⭐ Weed killer *by J***S on 30 June 2026* Good price , worked great ## Frequently Bought Together - Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate, Kills & Prevents for up to 1 Year, 32 fl.oz. - Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White - Roundup Poison Ivy Plus Tough Brush Killer₂ Concentrate, Visible Results in Hours, 32 fl. oz. --- ## 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/715587280-roundup-dual-action-365-weed-and-grass-killer-12-mo](https://www.desertcart.sg/products/715587280-roundup-dual-action-365-weed-and-grass-killer-12-mo) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-16*