---
product_id: 72448195
title: "RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon"
brand: "rm18"
price: "₩163948"
currency: KRW
in_stock: true
category: "Rm18"
url: https://www.desertcart.kr/products/72448195-rm18-fast-acting-weed-and-grass-killer-herbicide-spray-1
store_origin: KR
region: South Korea
---

# 1 gallon concentrate covers 12,600 sq ft visible in 12 hours RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon

**Brand:** rm18
**Price:** ₩163948
**Availability:** ✅ In Stock

## Summary

> 🌿 Kill weeds fast, impress your neighbors faster!

## Quick Answers

- **What is this?** RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon by rm18
- **How much does it cost?** ₩163948 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/72448195-rm18-fast-acting-weed-and-grass-killer-herbicide-spray-1)

## Best For

- rm18 enthusiasts

## Why This Product

- Trusted rm18 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Results:** See weeds vanish within 12 hours—because your time is too valuable to wait.
- • **Trusted Quality:** Backed by 2,000+ reviews and a top 150 rank in weed killers—join the savvy pros who rely on RM18.
- • **Easy Application:** Spray form for hassle-free, precise treatment—no mess, no stress.
- • **Max Coverage Power:** Transforms 1 gallon into 42 gallons of ready-to-use spray—unmatched efficiency for large lawns.
- • **Broad-Spectrum Control:** Targets both weeds and grass, giving you a pristine, uniform lawn every time.

## Overview

RM18 Fast-Acting Weed & Grass Killer is a powerful 1-gallon herbicide concentrate that makes up to 42 gallons of spray solution, covering up to 12,600 square feet. It delivers visible weed and grass elimination within 12 hours, combining efficiency and speed for professional-grade lawn care.

## Description

RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon

## Features

- Makes up to 42 gallons to ready-to-use spray solution
- Treats up to 12, 600 Square feet
- Visible results in 12 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BB8G44B |
| Active Ingredients | Herbicide |
| Best Sellers Rank | #12,029 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #133 in Weed Killers |
| Brand Name | RM18 |
| Coverage | 12600 Square feet |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,006) |
| Included Components | RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon |
| Item Form | Spray |
| Item Type Name | RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon |
| Item Weight | 9.3 pounds |
| Liquid Volume | 1 gallons |
| Manufacturer | Ragan & Massey, Inc. |
| Model Number | 75436 |
| Number of Packs | 1 |
| Part Number | 75436 |
| UPC | 737716754360 |
| Unit Count | 128 Fluid Ounces |
| Warranty Description | Warranty |

## Product Details

- **Active Ingredients:** Herbicide
- **Brand:** RM18
- **Item Form:** Spray
- **Item Weight:** 9.3 pounds
- **Liquid Volume:** 1 gallons

## Images

![RM18 Fast-Acting Weed & Grass Killer Herbicide, Spray, 1-gallon - Image 1](https://m.media-amazon.com/images/I/81Wg5DNk2vL.jpg)

## Questions & Answers

**Q: will this work for Spotted spurge**
A: Call RM18 mfg for specific advice

**Q: Will it work on catails and if so though the root?**
A: I'm not sure. Look up the list of plants it kills. I know that it can kill kudzu and bamboo -I've done it personally. I would try mixing 6-8oz per gallon if something like that.

**Q: How long should I wait before planting my own garden? I want to kill existing grass and then put in plants of my own.**
A: It only kill when it is sprayed on the leaf. Ground deactivates it

**Q: Why doesn't this kill anything?**
A: I use about 4 oz per gallon of water. Spray and make sure you have a day or two of sunshine. No rain for several days. It takes close to a week to really show the killing power, but believe me it works. Been using this product for years.

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**Shop now:** [https://www.desertcart.kr/products/72448195-rm18-fast-acting-weed-and-grass-killer-herbicide-spray-1](https://www.desertcart.kr/products/72448195-rm18-fast-acting-weed-and-grass-killer-herbicide-spray-1)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-20*