---
product_id: 541116006
title: "Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, Kills & Prevents for up to 1 Year, 1.25 gal."
brand: "roundup"
price: "S$142"
currency: SGD
in_stock: true
reviews_count: 8
category: "Roundup"
url: https://www.desertcart.sg/products/541116006-roundup-dual-action-365-weed-and-grass-killer-plus-12
store_origin: SG
region: Singapore
---

# 12-month weed prevention Visible results in hours Rainproof in 30 minutes Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, Kills & Prevents for up to 1 Year, 1.25 gal.

**Brand:** roundup
**Price:** S$142
**Availability:** ✅ In Stock

## Summary

> 🌿 Dominate weeds all year with unstoppable precision!

## Quick Answers

- **What is this?** Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, Kills & Prevents for up to 1 Year, 1.25 gal. by roundup
- **How much does it cost?** S$142 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/541116006-roundup-dual-action-365-weed-and-grass-killer-plus-12)

## 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

- • **Versatile Coverage:** Perfect for cracks, patios, gravel, and non-lawn areas—total control everywhere.
- • **Easy Refill Solution:** 1.25-gallon concentrate treats up to 375 sq. ft. with no mixing hassle.
- • **Rapid Action Formula:** See visible weed elimination within hours, not days.
- • **Year-Long Weed Defense:** Kills & prevents tough weeds for up to 12 months—set it and forget it.
- • **Weather-Resistant Power:** Rainproof in just 30 minutes—no need to wait for perfect weather.

## Overview

Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill delivers professional-grade weed control that kills existing weeds and prevents new growth for up to a full year. Its fast-acting, rainproof formula produces visible results within hours and is designed for use on driveways, sidewalks, patios, and other non-lawn areas. The 1.25-gallon refill treats up to 375 sq. ft., making it the ultimate solution for long-lasting, hassle-free weed management.

## Description

Roundup® Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer 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. This refill is the fast and easy way to refill your Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer. Simply pour into an empty container, remembering NOT to add water. 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 1.25 gal. container treats up to 375 sq. ft.

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.
Review: Appears to be a good product. - Does the job. Won't know till spring regarding the 365 claim.

## Features

- Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer 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 Refill 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
- The Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill is the fast and easy way to refill your Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C7YS9VXK |
| Best Sellers Rank | #242 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in Weed Killers |
| Brand | Roundup |
| Customer Reviews | 4.5 4.5 out of 5 stars (11,606) |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00070183000241 |
| Item Form | Spray |
| Item Weight | 8 ounces |
| Item model number | 5377204 |
| Liquid Volume | 1.25 Gallons |
| Manufacturer | Scotts Miracle-Gro |
| Product Dimensions | 5.5 x 7.5 x 11.75 inches |
| UPC | 070183000241 |
| Unit Count | 160.0 Fluid Ounces |

## Product Details

- **Brand:** Roundup
- **Item Form:** Spray
- **Item Weight:** 0.5 Pounds
- **Liquid Volume:** 1.25 Gallons
- **UPC:** 070183000241

## Images

![Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, Kills & Prevents for up to 1 Year, 1.25 gal. - Image 1](https://m.media-amazon.com/images/I/61TRFtar4qL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ AN ABSOLUTE WEED-KILLING SUPERWEAPON
*by J***K on November 24, 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.

### ⭐⭐⭐⭐⭐ Appears to be a good product.
*by M***Y on December 29, 2025*

Does the job. Won't know till spring regarding the 365 claim.

### ⭐⭐⭐⭐⭐ Works exactly as we hoped.
*by B***T on January 8, 2026*

We often purchase this product. It can cover large areas covered with weeds - it can effectively remove the weeds and the effect is rapid, without affecting other plants.

## Frequently Bought Together

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*