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Using Roundup® Weed & Grass Killer Products Properly

How Do I Refill?

Man refilling a Roundup Weed killer jug.

If you already own and love a Roundup® Weed & Grass Killer product with a wand, then a refill container will be your best value.

HOW TO REFILL: READY-TO-USE

Carefully pour the refill into your original ready-to-use container. That’s it! No need to add water — just the product itself.

Roundup® Ready-To-Use Weed & Grass Killer III Refill

Roundup® Ready-To-Use Weed & Grass Killer III Refill

Roundup® Extended Control Weed & Grass Killer Plus Weed Preventer Refill

Roundup® Extended Control Weed & Grass Killer Plus Weed Preventer Refill

Roundup® Max Control 365 Refill

HOW TO REFILL: CONCENTRATES

You can also refill some of your Roundup® Weed & Grass Killer products with their concentrate counterparts. In this case, pour the amount of concentrate called for on the label into the container, and then fill the rest with water. It’s best to fill it slowly to minimize foaming. We recommend using the following mix rates for our concentrates, but be sure to read the label for more specific directions.

Roundup® Concentrate Max Control 365

Roundup® Concentrate Max Control 365

  • 6 oz. per gallon of water
Roundup® Concentrate Poison Ivy Plus Tough Brush Killer

Roundup® Concentrate Poison Ivy Plus Tough Brush Killer

  • 6 oz. per gallon of water
Roundup lawn symbol.

LOOKING FOR INFO ON KILLING WEEDS IN YOUR LAWN?

Roundup® For Lawns kills weeds, not lawns.

ROUNDUP® FOR LAWNS

Related Articles

Whether you are just starting out, maintaining or troubleshooting, you'll find advice and answers here for all your weed control needs.

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Garden by a walkway.
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2021-01-21
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The information on this site refers to Roundup® Weed & Grass Killer products and is for homeowner use. Always read and follow label directions.

*Consumer Guarantee: If for any reason you are not satisfied after using this product, simply send us original proof of purchase, and we will refund the purchase price.

Always read and follow label directions. Roundup, Roundup & design, FastAct, Roundup Extended Control and X design, Roundup® Precision Gel™, Pump 'N Go, Sure Shot and Draw the Line are trademarks of Monsanto Technology LLC. © 2020 Monsanto Company, worldwide rights reserved.