Safer Brand 32 oz. Ready-to-Spray Moss and Algae Killer and Surface Cleaner-5324 - The Home Depot

Safer Brand

Model # 5324

Internet # 202705044

32 oz. Ready-to-Spray Moss and Algae Killer and Surface Cleaner

Safer Brand 32 oz. Ready-to-Spray Moss and Algae Killer and Surface Cleaner

This item has been discontinued.
The Home Depot no longer carries this specific product.

$17.97 / each


Model # 5324

Internet # 202705044

Take advantage of an OMRI listed solution, for the algae growth on your home or walkways. Safer Brand Moss and Algae Killer and Surface Cleaner effectively kills algae, mosses, lichens, liverworts and grime. This all-natural algae killer utilizes the natural effectiveness of potassium salts to rid your deck, roof, siding, walkways, lawn and more of algae and moss. This product is USDA National Organic Program compliant for use in organic gardening. No mixing needed this Ready-to-Use formula attaches directly to your hose for an economical and convenient organic solution to your algae problem. Your walkways can look like new again with this algae killer and surface cleaner from Safer Brand. Purchase some today. Shake well. Make sure knob of hose end sprayer is twisted fully clockwise to off position. Turn product control button clockwise until the flat portion is flush with the lock tab, then push button all the way in. Avoid squeezing bottle. Turn water on at faucet, aim nozzle toward surface and turn knob counter-clockwise to begin spraying. When finished, push product control button to OFF position from opposite side. Return knob and faucet to OFF position. Discharge water pressure by turning knob ON and OFF again. Turn product control button counterclockwise away from lock tab to prevent accidental discharge.

  • 32 fl. oz. RTS hose sprayer
  • Contains potassium salts of fatty acids (40%)
  • Kills algae, mosses, lichens, liverworts and grime
  • OMRI Listed and compliant for use in organic gardening

Info & Guides

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Assembled Depth (in.)  3.07 in  Assembled Height (in.)  10.81 in 
Assembled Width (in.)  5.15 in  Container Size (oz.)  32 
Application Method  Ready to Spray  Application Type  Hose End 
Concentrated or Ready to Use  Concentrated  Contact or systemic  Contact 
Equivalent ready to use amount  64 oz.  Fertilizer component  No 
Form  Liquid  Hazardous Code 
Indoor/Outdoor  Outdoor  Organic  Yes 
Pet and livestock friendly  Yes  Returnable  30-Day 
Safe for Edibles  Yes 


Rated 3.1 out of 5 by 9 reviewers.
Rated 4 out of 5 by Product great - applicator NOT! Being a good steward of the environment, I bought this product fully expecting that it would perform well below the toxic alternatives. Not true. While it didn't kill on contact, it did the job as advertised albeit requiring three liberal applications (4 containers) over 5 days. And I suppose that was primarily because I mostly hosed off the moss from the peak and the edges rather than scraping or power washing as my roof is quite steep and I have no desire to crawl or climb on it. Well worth the investment - job well done. Wish I had a "before" picture but rest assured, they were ready to cancel my homeowners insurance if I didn't clean it up! The hose connect applicator however was far less satisfactory. It leaked no matter how tightly I tweaked it and offered virtually no spray control - all or nothing - meaning I either sprayed a wide field that included windows, trees, power lines, and my neighbors yard or it dribbled drops that landed mostly on me. Next time - and I would buy this product again - I would use a separate spray applicator with more control and range. May 21, 2013
Rated 4 out of 5 by Used it on rocks on my waterfall The rocks in my backyard waterfall tend to build up algae and moss and I use this product to help keep it clean. It doesn't do the job 100% but does remove most of the build-up in the waterfall. Just hook it up to your garden hose and spray the area. December 8, 2013
Rated 1 out of 5 by Nope I followed the directions and I think my algae/mold actually LIKES this stuff. Made it turn greener and looks healthier than ever. That is not exactly what I had in mind... May 17, 2014
Rated 4 out of 5 by amust purchase The product did what i needed and cured the problem almost immediately October 28, 2014
Rated 3 out of 5 by Modest efficacy Treated a brick patio with product. After treatment and a LOT of scrubbing, there was noticable improvement, but certainly not removal of all the green/black discoloration. Unclear how much good the product did relative to just scrubbing with water. The bottle device works better than some similar attach-to-hose devices. September 6, 2011
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