30 SECONDS Outdoor Cleaner, 1 Gallon Concentrate for Concrete Surfaces, Cleans Algae, Mold, Mildew Stains
30 SECONDS Outdoor Cleaner, 1 Gallon Concentrate for Concrete Surfaces, Cleans Algae, Mold, Mildew Stains
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30 SECONDS

30 SECONDS Outdoor Cleaner, 1 Gallon Concentrate for Concrete Surfaces, Cleans Algae, Mold, Mildew Stains

30 SECONDS Outdoor Cleaner, 1 Gallon Concentrate for Concrete Surfaces, Cleans Algae, Mold, Mildew Stains30 Seconds Concentrated Outdoor Cleaner 1 gal2 pack 30 SECONDS Outdoor Cleaner Cleans Stains Caused by Algae Mold and Mildew 1 Gallon Concentrate
Multipack Quantity1

Key item features

  • Organic Stain Removal: Effectively cleans stains caused by organic growth such as algae, mold, mildew, dirt, and grime from various outdoor surfaces.
  • Concentrated Formula: Features a powerful, easy-to-use concentrated formula that requires a simple 1:1 mix ratio with water, then spray on and hose off.
  • Extensive Coverage: A single gallon of concentrate provides significant coverage, cleaning up to 200 square feet on porous surfaces and up to 600 square feet on nonporous surfaces.
  • Immediate Surface Results: Delivers immediate cleaning results on a wide array of outdoor surfaces including decks, concrete, bricks, siding, canvas, and painted surfaces.
  • Versatile Outdoor Cleaning: Suitable for cleaning virtually anything outdoors, including wood decks, gutters, stucco, patio furniture, canvas awnings, and vinyl fences.
  • Surface Preparation Aid: Ideal for preparing surfaces before painting, staining, or varnishing, ensuring a clean base for optimal results.
  • Plant-Safe Application: Designed to be safe for plants and grass, preventing harm during the cleaning process.
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Customer ratings & reviews

4.5 out of 5 stars
stars
2,153 ratings936 reviews
How item rating is calculated
  1. 5 stars78% (1,678)
  2. 4 stars9% (198)
  3. 3 stars5% (101)
  4. 2 stars2% (52)
  5. 1 star6% (124)

Reviews summary

Pros

  • : Quickly removes dirt and grime from surfaces.
  • : Requires minimal effort for effective cleaning.
  • : Leaves surfaces looking like new or restored.
  • : Quickly lifts dirt and grime with minimal effort.

Neutral

  • : Effective on some surfaces, but can struggle with others.
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Showing 1-3 of 936 reviews

May 12, 2026
Ramona
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

True 30 Second Cleaner

This 30 second cleaner is great on vinyl siding, as an general all purpose outdoor cleaner, no leftover residue and doesn't have a strong chemical smell like most others. Mix it in a garden sprayer and you are ready to clean.

Helpful?4XOVMWX55JED38471822
Apr 29, 2024
Diane
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Literally Worked In 30 Seconds!

The product worked really well. I had tried the day before I bought the product to use a power washer on my fence, which only caused damage. The 30 Seconds worked really fast. In a couple of spots, I had to soak with a little more solution, but the fence hadn't been cleaned in a few years. I would use it again. Make sure you wear a hat, gloves, mask, safety glasses and old clothes when you use it. Fumes are strong but not overpowering and outside, the wind can blow the solution into your hair, eyes and onto your skin.

Helpful?4XOVMWX55JED38471822
Oct 8, 2025
suz
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Best stubborn stain remover outdoor

Amazing to see the stains off my trex deck disappear before my eyes!!!! Would recommend to spot check and rinse

Helpful?4XOVMWX55JED38471822