--- product_id: 541726640 title: "Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate" brand: "roundup" price: "S$110" currency: SGD in_stock: true category: "Roundup" url: https://www.desertcart.sg/products/541726640-roundup-dual-action-365-weed-and-grass-killer-12-mo store_origin: SG region: Singapore --- # 12-month weed prevention Covers up to 1600 sq. ft. per bottle Rainproof in 30 minutes Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate **Brand:** roundup **Price:** S$110 **Availability:** ✅ In Stock ## Summary > 🌿 Dominate your outdoor space 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$110 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/541726640-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 - • **Broad-Spectrum Power:** Targets clover, dandelion, crabgrass, poison ivy, and more—no weed stands a chance. - • **Year-Long Weed Defense:** Kills and prevents tough weeds and grasses for a full 12 months—set it and forget it. - • **Fast-Acting & Rainproof:** Rainproof in just 30 minutes, so your weed control stays effective even if the skies open up. - • **Maximum Coverage Efficiency:** One 32 fl. oz. bottle treats up to 1,600 sq. ft., perfect for large patios, driveways, and gravel areas. - • **Easy Application, Professional Results:** Mix concentrate for spot or full-area treatment with a tank sprayer—precision meets power. ## Overview Roundup Dual Action 365 is a concentrated liquid weed and grass killer that delivers fast, rainproof results and prevents new weed growth for up to 12 months. Covering up to 1,600 sq. ft. per bottle, it effectively eliminates a wide range of tough weeds and grasses, making it ideal for non-lawn areas like driveways, patios, and gravel paths. Trusted by professionals and homeowners alike, it combines powerful active ingredients with easy application for long-lasting, visible results. ## 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. ## 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 | | Best Sellers Rank | #170 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5 in Weed Killers | | Brand Name | Roundup | | Coverage | 1600 square feet | | Customer Reviews | 4.5 4.5 out of 5 stars (1,009) | | EU Spare Part Availability Duration | 12 months | | Global Trade Identification Number | 00070183000357 | | Included Components | Roundup - 5378106 | | Item Form | Liquid | | Item Highlight | Weed Killer Concentrate, Kills & Prevents for up to 1 Year, 32 fl.oz. | | Item Type Name | Weed & Grass Killer | | Item Weight | 8 ounces | | Liquid Volume | 32 fluid ounces | | Manufacturer | Scotts Miracle-Gro | | Model Number | 5378106 | | Number of Packs | 1 | | Part Number | 5378106 | | UPC | 070183000357 | | Unit Count | 32 Fluid Ounces | | Warranty Description | Warranty | ## Product Details - **Active Ingredients:** Triclopyr;Triethylamine Salt;Fluazifop-P-Butyl;Imazapic;Ammonium Salt;Diquat Dibromide - **Brand:** Roundup - **Item Form:** Liquid - **Item Weight:** 8 ounces - **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/41hCcW36+SL.jpg) ![Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate - Image 2](https://m.media-amazon.com/images/I/51ifPL8vlyL.jpg) ![Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate - Image 3](https://m.media-amazon.com/images/I/51gsaJyKskL.jpg) ![Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate - Image 4](https://m.media-amazon.com/images/I/51lV9GmiPNL.jpg) ![Roundup Dual Action 365 Weed & Grass Killer + 12 Mo. Preventer Concentrate - Image 5](https://m.media-amazon.com/images/I/51il6ZVHmlL.jpg) ## Available Options This product comes in different **Size** options. ## 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/541726640-roundup-dual-action-365-weed-and-grass-killer-12-mo](https://www.desertcart.sg/products/541726640-roundup-dual-action-365-weed-and-grass-killer-12-mo) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-18*