SKU: 35923293491
select herbicide active ingredient

select herbicide active ingredient Finalsan Weed Killer

Sale price$26.08 Regular price$28.98
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

select herbicide active ingredient Finalsan Weed KillerOMRI Listed NOW WITH FREE SHIPPING ON 250 GALLON TOTE SIZE ONLY Finalsan is a patented fast acting weed, grass, algae, and moss killers that represent a new class of products for organic weed control that do not contain glyphosate or other toxic chemicals! Utilizing concentrated and potent and non staining fatty acids (soaps), Finalsan is a non selective herbicides and the best new top of the line technology for fast acting and through killing or


OMRI Listed

NOW WITH FREE SHIPPING ON 250 GALLON TOTE SIZE ONLY

 

Finalsan® is a patented fast-acting weed, grass, algae, and moss killers that represent a new class of products for organic weed control that do not contain glyphosate or other toxic chemicals!  Utilizing concentrated and potent and non-staining fatty acids (soaps), Finalsan is a non-selective herbicides and the best new top-of-the-line technology for fast-acting and through killing or suppression of many common annual, biennial, and perennial weeds, algae and mosses. A great organic product for use when conventional herbicides are banned or not desired!

We are excited to also now offer Finalsan in smaller, more home friendly sizes under the Captain Jack's Deadweed Brew Brand. You can now treat your own lawn with professional products and  professional-grade results!

 

 


How Does Finalsan Work?

 

Herbicidal soaps work by penetrating the waxy cuticle of plants, causing the plant to dehydrate and die. The active ingredients accumulate in plants and cause intracellular damage, leading to cell death. Activity is non-selective and will kill plants the soap comes into contact with, but will not translocate to underground portions of the plant or harm the bark of mature, woody plants.  Can be safely sprayed around the base of trees, shrubs, hops, grapes without worry.  

Use on weeds within vegetable and flower gardens, landscaped areas, lawns (for spot treatment only), in the vicinity of small fruits and fruit trees, around and on buildings, sidewalks, fences, bark mulch, driveways, patios and gravel.  Use on moss and algae, around and on buildings, roofs, decks, sidewalks, fences, bark mulch, driveways, patios and gravel. Finalsan can even be used in cool weather. Areas can be planted five days after treatment.

Finalsan reduces tree toxicity risks and leaves no harmful residue in the soil. It won’t stain bricks, concrete or asphalt and people and pets can re-enter areas once spray dries.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 35923293491

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    4.2 ★★★★★
    Based on 9 reviews
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    Y
    Verified Purchase
    Yuna Tampa Fl ✅
    Draper, US
    ★★★★★ 5
    Feliz 🙂
    Súper buena resolví mi problema
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 4, 2026
    S
    Verified Purchase
    Sam E
    Lowell, US
    ★★★★★ 5
    Perfect fit and high quality.
    Size: (Pack of 1)
    Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 9, 2025
    J
    Verified Purchase
    john A.
    New York, US
    ★★★★★ 5
    Better than most.
    Size: (Pack of 1)
    Looks good, perfect fit.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2026
    W
    Verified Purchase
    Willy Bill
    Carnegie, US
    ★★★★★ 5
    Great Filter
    Size: (Pack of 1)
    This fits fine. Just wish it was a little easier to change.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026
    E
    Verified Purchase
    em
    Charlottesville, US
    ★★★★★ 5
    More power, slightly lower (8%) MPG.
    Size: (Pack of 1)
    Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2026

    recommand products