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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.



| 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 |
J**E
Great quality and value
Potent stuff, but doesn't work instantly.
C**N
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.
D**G
This is the best ground clearing herbicide you can find.
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.
E**O
Slow but Works
This stuff really works great ! But it takes its time working ..so be patient..
B**A
Kills alligator Weed!
My whole yard was taken over by alligator weed it killed most of it by day 3 I sprayed again on the only healthy weed left. It will kill your yard but if it’s taking over then get it all. As I spent 100s on others to no avail.
C**D
Best product on the market!
The best weed/grass killer I’ve ever used. Works within a couple days. Takes far less than any other similar products. I ordered a second bottle so I don’t run out.
T**R
Hi-Yield Killzall Super Concentrate Weed & Grass Killer, 16 oz
Hi-Yield Killzall Super Concentrate herbicide for controlling unwanted weeds and grass. This 16 oz bottle is ideal for outdoor use in areas such as driveways, sidewalks, fence lines, patios, and other non-lawn areas where vegetation control is needed. Easy to mix and apply according to the label instructions. Please read and follow all safety directions before use, and keep away from children and pets.
W**E
Works but slow
Takes a long time to start showing results but it does eventually start working I think it took about 10 days before anything started turning yellow but sure enough the stuff did die !
Trustpilot
1 month ago
3 weeks ago