Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate, 32 fl. oz.
Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate, 32 fl. oz.
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Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate, 32 fl. oz.

834 ratings

Key item features

  • Long-Lasting Protection: Provides one-step weed protection for up to 12 months
  • Effective Weed Control: Kills and prevents tough weeds and grasses, including clover, dandelion, crabgrass, and poison ivy
  • Quick Results: Rainproof in 30 minutes and visible results in hours
  • Versatile Use: Ideal for driveways, sidewalks, patios, paths, under decks, and other non-lawn areas
  • Easy Application: Mix according to label directions and spray evenly over 300 sq. ft. per gallon with a tank sprayer
  • Comprehensive Coverage: One 32 fl. oz. bottle makes up to 5.3 gallons and covers up to 1,600 sq. ft.
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Customer ratings & reviews

4.6 out of 5 stars
stars
834 ratings289 reviews
How item rating is calculated
  1. 5 stars78% (654)
  2. 4 stars12% (97)
  3. 3 stars3% (25)
  4. 2 stars2% (17)
  5. 1 star5% (41)

Reviews summary

Pros

  • : Clears weeds in driveway cracks and crevices.
  • : Works in small to large yard areas.
  • : Features a straightforward spray nozzle and easy application.
  • : Allows for easy application with minimal effort.
  • : Instructions are easy to follow and understand.

Neutral

  • : Offers great value at lower prices, but can be overpriced at higher costs.
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Showing 1-3 of 289 reviews

Aug 27, 2026
Reviewer name: Raymond
Item details
Size: 32oz
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Concentrate saved Money!!

Started using this at the beginning of the summer. Way better than previously used concentrate. Had a real sprawling weed problem in my pavers and around the pool, but no more. They are now unlived (dead). Heads-up: go for the concentrate. Buy a cheaply priced, well made, sprayer, and you'll get 5 gallons out of this concentrate rather than $30 for one gallon of premixed.

Helpful?2OY6JYOBXBN61441542990
Oct 6, 2026
Reviewer name: GalynaB
5 out of 5 stars
5 out of 5 stars review

Works !

[This review was collected as part of a promotion.] Strong weed killer. Very concentrated so make sure to read the instructions before using. Make sure to wear gloves and be very careful with it. Works well!

Review from roundup.com
Helpful?2OY6JYOBXBN61441542990
Oct 7, 2026
Reviewer name: ANITA
Top Reviewer
Item details
Size: 32oz
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

CAN'T BEAT THIS FOR KILLING WEEDS. I LOVE IT! MY FLOWERS STAY BEAUTIFUL WHILE THE WEEDS DIE.

Helpful?2OY6JYOBXBN61441542990
Current price is Now $49.99
You save $15.00
was $64.99
$1.56/fl oz
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