---
product_id: 7921996
title: "(33693) Super Concentrate Killzall Weed & Grass Killer, 1 gal | Glyphosate 41% super concentrate - Kills weeds & grasses to root, mixes to treat large areas, 1 gal - Serious DIYers"
brand: "hi-yield"
price: "1161 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Hi Yield"
url: https://www.desertcart.ro/products/7921996-33693-super-concentrate-killzall-weed-and-grass-killer-1-gal
store_origin: RO
region: Romania
---

# Fast-drying double-surfactant 41% Glyphosate power Covers up to 25,600 sq ft (33693) Super Concentrate Killzall Weed & Grass Killer, 1 gal | Glyphosate 41% super concentrate - Kills weeds & grasses to root, mixes to treat large areas, 1 gal - Serious DIYers

**Brand:** hi-yield
**Price:** 1161 Lei
**Availability:** ✅ In Stock

## Summary

> 🌱 Dominate your lawn game with power and precision!

## Quick Answers

- **What is this?** (33693) Super Concentrate Killzall Weed & Grass Killer, 1 gal | Glyphosate 41% super concentrate - Kills weeds & grasses to root, mixes to treat large areas, 1 gal - Serious DIYers by hi-yield
- **How much does it cost?** 1161 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/7921996-33693-super-concentrate-killzall-weed-and-grass-killer-1-gal)

## Best For

- hi-yield enthusiasts

## Why This Product

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

## Key Features

- • **Concentrated Value:** Super concentrate means a little goes a long way—maximize your investment and minimize effort.
- • **Powerful Root Kill:** 41% glyphosate formula penetrates deep to eliminate weeds and grasses down to the root.
- • **Unmatched Coverage:** Treat massive 25,600 sq ft areas with just 1 gallon—perfect for large-scale weed control.
- • **Rapid Action Formula:** Double-surfactant technology ensures fast drying and quicker weed control results.
- • **Trusted by Pros & DIYers:** Top-ranked with 4.4 stars from nearly 7,000 reviews—join the savvy crowd who demand results.

## Overview

Hi-Yield Super Concentrate Killzall is a 1-gallon liquid herbicide featuring 41% glyphosate and a double-surfactant formula for fast drying and effective root-level weed and grass control. Covering up to 25,600 sq ft, it’s designed for large outdoor areas and favored by both professionals and serious DIYers for its potent, long-lasting results.

## Description

desertcart.com : Hi-Yield (33693) Super Concentrate Killzall Weed & Grass Killer, 1 gal | Glyphosate 41% super concentrate - Kills weeds & grasses to root, mixes to treat large areas, 1 gal - Serious DIYers : Patio, Lawn & Garden

Review: Great quality and value - Potent stuff, but doesn't work instantly.
Review: It works and is worth the money. - I have a gravel driveway and use this to keep the grass and weeds out. A bottle will last the summer. Couldn't find it anymore at my local coop and was happy to find it here even cheaper. It's concentrated when you mix it with water and a little goes a long way. So much better than the usual name brands you find at the big chain stores. They aren't nearly as effective as this. I notice results in a few days and can nearly go a month before having to spray again. It will get rid of thick clusters of grass and any weed. Make sure you are spraying where you don't want anything to grow. Just follow the instructions that are behind the label.

## Features

- Weed killer controls grasses, broadleaf weeds and woody brush species. Do not use on lawns.
- Contains a double-surfactant formulation that dries on plant fast to start working quickly.
- Allows you to cover and treat large areas. 1 gal. covers up to 25,600 sq ft.
- 1 gal bottle of weed control liquid concentrate can treat up to 25,600 square feet.
- See label for application instruction. Spraying accessory required for application.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000VIRF9A |
| Active Ingredients | Glyphosate |
| Best Sellers Rank | #299 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Weed Killers |
| Brand | Hi-Yield |
| Brand Name | Hi-Yield |
| Coverage | 25600 square feet |
| Customer Reviews | 4.4 out of 5 stars 6,935 Reviews |
| Global Trade Identification Number | 00732221336933 |
| Included Components | 1 Bottle |
| Item Form | Liquid |
| Item Type Name | Voluntary Purchasing Group 33693 Hi-Yield Killzall Weed and Grass Kill |
| Item Weight | 10.2 pounds |
| Liquid Volume | 128 fluid ounces |
| Manufacturer | Arett Sales - LG |
| Model Number | 33693 |
| Number of Packs | 1 |
| Part Number | 33693 |
| UPC | 732221336933 |
| Unit Count | 128 Fluid Ounces |

## Product Details

- **Active Ingredients:** Glyphosate
- **Brand:** Hi-Yield
- **Item Form:** Liquid
- **Item Weight:** 10 Pounds
- **Liquid Volume:** 128 Fluid Ounces

## Images

![(33693) Super Concentrate Killzall Weed & Grass Killer, 1 gal | Glyphosate 41% super concentrate - Kills weeds & grasses to root, mixes to treat large areas, 1 gal - Serious DIYers - Image 1](https://m.media-amazon.com/images/I/71YohmkMnNL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: will this still work if weeds are already cut to the ground?**
A: Like all glyphosate products, the spray is put on the leaves and is taken up by the plant.  It is translocated thru the plant and kills it.   Less foliar area means less surface to absorb the herbicide.   So you should expect less effectivness if the weeds are cut to the ground.   Why bother cutting them, if you are going to poison?  After application of glyphosate you will not see any effects for about 14 days.  Works best in warm weather (active weed growth).  good luck.

**Q: WILL THIS PRODUCT KILL JOHNSON GRASS**
A: yes it will kill Johnson grass.  Mix according to label (5 tablespoons per gallon) mix well, spray foliage surface,  wait 10-14 DAYS,  then it will be dead.

**Q: Waiting period to replant grass sod ?**
A: KillzAll only has a residual of about 2 weeks on the soil so you just have to wait 2 weeks before reseeding/sodding

**Q: how long before pets can go out after it is sprayed?**
A: when dry so does not stick to paws. No licking

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality and value
*by J***E on July 18, 2026*

Potent stuff, but doesn't work instantly.

### ⭐⭐⭐⭐⭐ It works and is worth the money.
*by C***N on July 9, 2026*

I have a gravel driveway and use this to keep the grass and weeds out. A bottle will last the summer. Couldn't find it anymore at my local coop and was happy to find it here even cheaper. It's concentrated when you mix it with water and a little goes a long way. So much better than the usual name brands you find at the big chain stores. They aren't nearly as effective as this. I notice results in a few days and can nearly go a month before having to spray again. It will get rid of thick clusters of grass and any weed. Make sure you are spraying where you don't want anything to grow. Just follow the instructions that are behind the label.

### ⭐⭐⭐⭐⭐ This is the best ground clearing herbicide you can find.
*by D***G on June 28, 2026*

This herbicide works extremely well. It kills crab grass root and all as well as other weeds. It takes a few days but it is great. You just have to be careful as it kills everything in its path.

## Frequently Bought Together

- Hi-Yield (33693) Super Concentrate Killzall Weed & Grass Killer (1 gal)
- Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-08-16*