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Safer Brand 5324-6 Moss and Algae Killer and Surface Cleaner, 32 oz. Hose Sprayer

3.8 3.8 out of 5 stars 121 ratings
$20.28 with 8 percent savings $0.63 per Fl Oz
Typical price: $21.95

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32oz Hose Spray
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Purchase options and add-ons

Brand Safer
Item Weight 2.3 Pounds
Liquid Volume 32 Fluid Ounces
Item Form Spray
Coverage 500 square feet

About this item

  • This moss and algae killer utilizes the effectiveness of potassium salts to rid your deck, roof, siding, walkways, lawn and more of algae and moss
  • Ready-to-use formula attaches directly to your hose for an economical and convenient solution
  • Kills algae and mosses
  • OMRI listed for organic use

Customer ratings by feature

Easy to use
3.8 3.8
Value for money
3.0 3.0
See all reviews

Frequently bought together

Safer Brand 5324-6 Moss and Algae Killer and Surface Cleaner, 32 oz. Hose Sprayer
$20.28 ($0.63/Fl Oz)
Get it as soon as Friday, May 31
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Scotts MossEx 3-in-1 Ready-Spray, Moss Killer for Lawns, Hard Surfaces, and More, 32 fl. oz.
$22.99 ($0.72/Fl Oz)
Get it as soon as Wednesday, May 29
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Ships from and sold by Amazon.com.
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BioAdvanced 704710B 2-in-1 Moss and Algae Killer and Cleaner for Lawns, 32 oz, Ready-to-Spray
$19.97 ($0.62/Fl Oz)
Available to ship in 1-2 days
Ships from and sold by Amazon.com.
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Safer Brand 5324-6 Moss and Algae Killer and Surface Cleaner, 32 oz. Hose Sprayer

Safer Brand 5324-6 Moss and Algae Killer and Surface Cleaner, 32 oz. Hose Sprayer

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Product Description

Product Description

Safer Brand 32 oz. Moss and Algae Killer and Surface Cleaner utilizes the effectiveness of potassium salts of fatty acids. This product is an economical and convenient solution to the wide array of moss and algae annoyances. For use on roofs, decks, siding, walkways, home greenhouses, growing containers and benches, structural surfaces, hardened barks of trees, lawns and turf. OMRI listed for organic use. One bottle treats up to 500 sq ft.

From the Manufacturer

This moss and algae killer and surface cleaner RTS hose sprayer utilizes the effectiveness of potassium salts of fatty acids. This product is the most economical and convenient organic solution to the wide array of moss and algae annoyances on the market! Safe for use on roofs, decks, siding, walkways, home greenhouses, growing containers and benches, structural surfaces, hardened barks of trees, lawns and turf. OMRI-listed and compliant for use in organic gardening.

Customer reviews

3.8 out of 5 stars
3.8 out of 5
121 global ratings

Customers say

Customers like the performance and ease of application of the weed moss control agent. For example, they mention it works well, is effective, and easy to apply. That said, opinions are mixed on mosses control.

AI-generated from the text of customer reviews

26 customers mention19 positive7 negative

Customers like the performance of the weed moss control agent. For example, they say it's effective, easy to use, and works great for their roof. Some mention that the hose end sprayer works great, but some say it can be fatty. However, most are happy with the product's performance and say it does a good job of killing about 85% of the.

"...This does a good job, without scrubbing, with the 'jet' setting on a hose nozzle, to remove outer moss and thin layers of moss from buildings...." Read more

"...It is easy to use, effective and safer for the environment and humans than most other brands...." Read more

"This worked great for our roof in the mossy Pacific NW. What we did was apply it one day, leave it on to soak in, then rinse it off the next day...." Read more

"...It did not show much of a difference. A few days later when I was looking at that section of the roof it still looked green...." Read more

7 customers mention7 positive0 negative

Customers find the weed moss control agent easy to apply. They mention that it works well, is easy to attach to a hose, and is easy for them to spray.

"...It is easy to use, effective and safer for the environment and humans than most other brands...." Read more

"...Very easy to attach to hose and spray." Read more

"Easy to use and happy that I didn’t have to purchase a large container." Read more

"...It killed all the moss and was easy to apply. It took two bottles to do the whole roof so make sure you buy enough. Great!" Read more

4 customers mention4 positive0 negative

Customers are happy with the fact that the weed moss control agent is not environmentally toxic. They say it is safe for the environment and humans.

"...On brick ground gutters it can leave a film if not rinsed off. Safe for the grass...." Read more

"...It is easy to use, effective and safer for the environment and humans than most other brands...." Read more

"...Although this stuff is less toxic than most of the alternatives, it's still unpleasant to breathe in and is slippery on the roof, so I recommend..." Read more

"I like that this product is not environmentally toxic, so what that means is it takes several applications to get rid of roof moss...." Read more

20 customers mention8 positive12 negative

Customers have mixed opinions about the moss control. Some say it gets rid of the Moss, while others say it leaves a white residue.

"The results are only mediochre and a white residue was left in places which was hard ot get rid of." Read more

"...This does a good job, without scrubbing, with the 'jet' setting on a hose nozzle, to remove outer moss and thin layers of moss from buildings...." Read more

"Not only did the product leave a white stain on my patio but it didn’t get rid of algae...." Read more

"...bottle the first time I used it and could have used more, it did get rid of the moss!..." Read more

OK this stuff actually works. Sprayed on roof to ...
5 Stars
OK this stuff actually works. Sprayed on roof to ...
OK this stuff actually works. Sprayed on roof to take care of moss, and it killed everything it touched. Sprayed on shake shingle siding, and it killed everything it touched. Only issue I have is that the spray does not squirt far enough -- maybe 10-15 feet from the front of the hose. If it had an adapter nozzle that I could put my own spray nozzle onto then I could have reached everything without getting on the roof. Overall though, because of it's effectiveness I give it 5 stars.Edit: 7/26/2016Moss is still pretty dead where I sprayed it back in 2014, but starting to regrow in places.I'm applying again, and to the parts of the roof the sprayer couldn't reach last time. I'm using my own sprayer this time, which will spray a lot farther, and putting the solution into it. Called customer service to find the dilution ratio if I use my own sprayer instead of the built-in one. If you use your own sprayer the dilution rate is 20:1, that works out to about 13 Tablespoons per gallon. Thought this might help anyone who has the same issue I did, which was the sprayer not reaching the peak of the roof. Also, their Customer Service rep was polite, thorough, and very helpful.
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Top reviews from the United States

Kathy D
5.0 out of 5 stars Gentle Natural Moss Remover
Reviewed in the United States on July 13, 2017
Size: 32oz Hose SprayVerified Purchase
I use this on gravel paths and old brickwork to freshen it up once a year. I like the look of a little moss and age on old brickwork but not so much that the brick is damaged or slippery. This does a good job, without scrubbing, with the 'jet' setting on a hose nozzle, to remove outer moss and thin layers of moss from buildings. If I wanted to take off all the moss, I would need a brush and maybe would need to treat it twice but I know it would work. It does an even better job dissolving moss from gravel paths. I don't even have to do more than rinse it off after it sits 15-20 minutes. In some areas I don't rinse and it looks fine. Does not discolor anything. On brick ground gutters it can leave a film if not rinsed off. Safe for the grass. I don't treat the grass but I feel better using a product that won't hurt the grass if I get it on it. I do try to remember to rinse it off the grass after it sits a while.
One person found this helpful
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satyajitfan
5.0 out of 5 stars Happy
Reviewed in the United States on October 29, 2011
Size: 32oz Hose SprayVerified Purchase
I ordered the Safer Brand Moss and Algea killer to kill Algea growing on part of the North facing roof of our home. First I washed the area with a pressure washer which washed away most of these algeas. I then used this product to kill any of the residual algeas close to the roof flashing. I did use the product on a day when the temperature was 65 degrees or higher. It did not show much of a difference. A few days later when I was looking at that section of the roof it still looked green.I will try it again in late spring next year to see if it produces any better result.One generous application should have done the job!Not very pleased.
I repeated the application again in June 2012 and am happy to say that the moss spray worked like a wonder. The moss growing on the roof facing north is now completely dead!
A vigorous shaking of the bottle is required and there is a little push button next to the spray gun which must be completely pushed out. I will give it a 5 star rating!
12 people found this helpful
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L. Shultes
3.0 out of 5 stars Easy to use, BUT
Reviewed in the United States on November 25, 2012
Size: 32oz Hose SprayVerified Purchase
The results are only mediochre and a white residue was left in places which was hard ot get rid of.
11 people found this helpful
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Fred Stratton
4.0 out of 5 stars moss and algae problem.
Reviewed in the United States on September 4, 2013
Size: 32oz Hose SprayVerified Purchase
The roof I sprayed is to steep to brush or sweep but the Safer brand Moss and Algae cleaner killed the moss and algae. I would recommend this product. Fred
One person found this helpful
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Long time pet product purchaser
1.0 out of 5 stars Left a white stain on my patio
Reviewed in the United States on May 27, 2023
Size: 32oz Hose SprayVerified Purchase
Not only did the product leave a white stain on my patio but it didn’t get rid of algae. I had to scrub the area 3 times with a vinegar/detergent solution which got rid of most of the white residue. It was the scrubbing that removed algae, which water would have done with all the labor.
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h
5.0 out of 5 stars Safer on the world and it works
Reviewed in the United States on November 29, 2020
Size: 32oz Hose SprayVerified Purchase
This review asks that I discuss thickness and warmth (🤡) however the Safer Brand Moss and Algae spray does not possess these traits. It is easy to use, effective and safer for the environment and humans than most other brands. I highly recommend this product if you are trying to eliminate moss, lichen or algae from your house exterior. I am a repeated user of this product because it works.
3 people found this helpful
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Paul O
2.0 out of 5 stars Didn’t work
Reviewed in the United States on July 27, 2023
Size: 32oz Hose SprayVerified Purchase
Used the product several times on the same area. Did not kill the mosd
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acordeon
5.0 out of 5 stars This worked great for our roof in the mossy Pacific NW
Reviewed in the United States on January 5, 2015
Size: 32oz Hose SprayVerified Purchase
This worked great for our roof in the mossy Pacific NW. What we did was apply it one day, leave it on to soak in, then rinse it off the next day. That seemed to do the trick, although was a little time consuming. Although this stuff is less toxic than most of the alternatives, it's still unpleasant to breathe in and is slippery on the roof, so I recommend washing it off.
8 people found this helpful
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