Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, 1.25 gal.
Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, 1.25 gal.
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Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill, 1.25 gal.

4.6 stars out of 537 reviews
(4.6)|
537 ratings

Key item features

  • Long-Lasting Protection: Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer provides one-step weed protection for up to 12 months.
  • Effective Weed Control: Kills and prevents many types of tough weeds and grasses, including clover, dandelion, crabgrass, poison ivy, and other broadleaf and grassy weeds.
  • Quick Results: Rainproof in as fast as 30 minutes and produces visible results in hours.
  • Versatile Use: Ideal for use in cracks and crevices in driveways, sidewalks, walkways, patios, paths, under decks, gravel areas, and other non-lawn areas.
  • Easy Refill: The refill is a fast and easy way to replenish your Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer.
  • Coverage Area: One 1.25 gal. container treats up to 375 sq. ft.
  • Application Tip: To prevent new weeds and grasses, spray the entire area you want to control, not just the emerged weeds.
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Customer ratings & reviews

4.6 out of 5 stars
stars537 ratings248 reviews
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Reviews summary

Pros
  • : Kills weeds in driveway cracks and crevices.
  • : Controls weeds and vines in various yard sizes.
  • : Requires minimal effort for smooth application.
  • : Covers a good area easily.
  • : Features an extended length for easy application and coverage.
Neutral
  • : Can be a great value, but also feels overpriced to some.
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Showing 1-3 of 248 reviews

May 23, 2025
karls18_6547
5 out of 5 stars review

Kills poison ivy and tough brush fast—highly effec

[This review was collected as part of a promotion.] I've tried a few different products for poison ivy and tough brush, but this Roundup concentrate absolutely delivered. I mixed it as directed and applied it to a thick patch of poison ivy and overgrown vines that had taken over the back fence. Within a few days, everything started to wilt, and within a week it was completely dead. The application was easy with a sprayer, and the results were fast and effective. I also appreciated that it didn't require multiple treatments—one round did the job. Just be sure to wear gloves and follow the safety directions. This stuff works!

Review from influenster.com
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May 29, 2025
copcon07_9632
5 out of 5 stars review

Couldn't immagine it working any better

[This review was collected as part of a promotion.] We've been very attentive on my yard this year. we have some weeds that are relentless (many different types of weeds that are SO difficult to kill/contain). I've used numerous other weed killers over the years, and they don't work at all. I sprayed it in one entire section of our yard that was consumed with weeds. I went outside the next day and it was now dead.

Review from influenster.com
Helpful?4WG4OCZDSD6E2601625098
Jul 18, 2025
katlucki_8259
5 out of 5 stars review

Concentrated!

[This review was collected as part of a promotion.] Weed was coming growing through the pavers. So purpose is to use this weed killer to do its job so I can pull it out easily and resand in between. Easier application and I used a small sprayer bottle. This stuff is powerful and low maintenance last 12 months prevention! I have also weed growing between cracks of concrete side walk! I used a previous brand and would last for a short time. New growth will come back. This is my solution.

Review from influenster.com
Helpful?4WG4OCZDSD6E2601625098