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Internet # 100619266

Model # ZU104632

Store SKU # 256508

Store SO SKU #1001492999

Top Rated

32 fl. oz. Grout Cleaner and Brightener

$10.98
  • Restores Stained Tile Floor Grout Lines without Heavy Scrubbing
  • Cleaning Formula Keeps Colors Intact and is Not Abrasive to Tile
  • Professional Strength for Commercial or Residential Use
  • View More Details

Free & Easy Returns In Store or Online

Return this item within 90 days of purchase.

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Product Details

About This Product

Deep cleaning grout is a tough job, even for Pros. Zep 32 oz. Grout Cleaner and Brightener contains strong but safe acids that act as a stain remover for grout lines. This professional strength formula quickly restores stained grout lines on tile floors without the need for heavy scrubbing. The formula is not abrasive to tile surfaces.

Highlights

  • For use on: white or colored grout lines on tile floors
  • Not for use on: marble, terrazzo, travertine, natural stone, chrome, stainless steel, brass or Corian
  • Strong formula great for commercial and residential use
  • Deep cleans grout lines and lifts stains
  • Trusted to remove tough old stains from grout and keep color intact
  • Product is not to be used to remove mold, mildew, calcium or limescale and rust
  • Return Policy

Product Information

Internet # 100619266

Model # ZU104632

Store SKU # 256508

Store SO SKU #1001492999

Additional Resources

Shop All ZEP
From the Manufacturer

Specifications

Product Size: 32 OZ-Ounce

Dimensions

Product Size

32 OZ-Ounce

Details

Concentrated or Ready to Use

Concentrated

Features

No Additional Features

Helps Remove

Rust

Pack Size

1

Product Form

Liquid

Recommended Surfaces

Tile

Returnable

90-Day

Where to Use

Bathroom, Kitchen

Warranty / Certifications

Manufacturer Warranty

N/A

Questions & Answers

Can I use this on the blackened grout in a fiberglass shower stall
ByFeb 28, 2026
1 Answer | 
Answer This Question

No, we wouldn’t recommend this for blackened grout. This product is intended for use on white or colored grout lines on tile floors. Please refer to the back label for proper usage and safety instructions.

By|Mar 5, 2026


    Will this damage porcelain tile if left on more than 3 minutes?
    ByNov 30, 2025
    1 Answer | 
    Answer This Question

    That is possible. This product is not meant to come into contact with tile and should only be used on grout. We recommend wiping off any excess product and if it comes into contact with tile for an extended period of time, please rinse the tile with water.

    By|Feb 11, 2026

      (1)

      Will this remove paint from grout
      ByNov 26, 2025
      1 Answer | 
      Answer This Question

      This product is made to clean and brighten grout, so we can't say for certain it will be able to remove paint. If you decide to try to remove paint using this product, we recommend using a brush or q-tip for more precise application. Please see the label for proper usage information and use are directed. Test in on a small, inconspicuous area before use.

      By|Dec 1, 2025


        How many bottles will be needed to do 2 bathroom and appx 900 sq ft
        ByOct 8, 2025
        1 Answer | 
        Answer This Question

        Unfortunately, there is no definitive way to answer this. This product should only be applied to grout, and the amount of grout can vary depending on the size of the tiles.

        By|Oct 14, 2025


          Is this safe for someone with COPD to use?
          BySep 10, 2025
          1 Answer | 
          Answer This Question

          We are unable to provide medical advice or recommendations. This product contains urea hydrochloride, and it is important to avoid breathing vapors or spray mists. Always use the product only with adequate ventilation. If you have COPD or any other medical condition, we recommend consulting your doctor before use to determine if this product is safe for you.

          By|Sep 11, 2025


            Is it necessary to reseal grout after using this product?
            ByAug 27, 2025
            1 Answer | 
            Answer This Question

            It is not necessary with the use of this product. However, it will really depend on how long it has been since your grout has been sealed, the amount of foot traffic the floor gets, and the state of the grout itself. We recommend resealing every 6 to 12 months. Please see label for proper usage instructions and follow carefully. Always test in an inconspicuous area before use.

            By|Feb 3, 2026

              (1)

              Can I steam the grout with Zep already on it and would it help?
              ByAug 25, 2025
              1 Answer | 
              Answer This Question

              We do not recommend applying this product in any manner that is inconsistent with the label. Apply the product to your grout lines only, wait 3 minutes, and then thoroughly rinse and wipe away. If you want to steam clean your grout lines, we recommend doing it before using this product and be sure that the area has dried completely before applying our product. Please see the back label for proper usage instructions.

              By|Aug 25, 2025


                I love ZEP! It's an amazing product. My question is, can I dilute ZEP?
                ByJun 29, 2025
                1 Answer | 
                Answer This Question

                This product is not meant to be diluted. While some of our products are, it will typically say 'concentrated' on the front and have dilution information on the back. The Grout Cleaner & Brightener is meant for heavy-duty grout cleaning, so it is strong. If you are looking for a grout cleaner that can be used between deep cleans, we recommend Zep Home Pro Miracle Grout Cleaner + Protectant. Please see the label for proper usage instructions and always test in an inconspicuous area before use.

                By|Oct 30, 2025

                  (1)

                  Viewing 1-8 of 178

                  Customer Reviews

                  4.3 out of 5

                  • 4.3 out of 2,037 reviews
                  • 80% recommend this product
                  Filter by:
                  Showing 1-10 of 2,037 reviews
                  Wow I am impressed
                  Wow . I just wiped with a sponge amd wowww see pics
                  by
                    Amazing!
                    I barely ever leave reviews, so believe me when I say that this stuff is fantastic. The key is patience. You just put it on the grout wait the full 3 minutes, agitate with a brush, wipe up, and then wipe off with a wt cloth. Easy peasy and the results are great!
                    by
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      I love this Zep grout cleaner!
                      I have been using this grout cleaner to clean the grout in my kitchen floor tile and it’s been amazing. It literally bubbles up the dirt and junk in minutes. You do a little bit of scrubbing and it’s gone. I don’t know how you could make it any easier. I highly recommend this product.
                      by
                        • Recommended
                        Awesome
                        I chose white grout not thinking how dirty it would get. This stuff is amazing!!
                        by
                          Absolute SORCERY
                          If a cleaning wizard concentrated magic, liquefied it and crammed it into a bottle, it would be this stuff. In fact, I think that’s how all Zep products are made. My fiance bought his home 17 years ago and just used a WetJet Swiffer for years. Once I moved in, I introduced a proper mop and did a deep clean… or so I thought. Knowing the grout was not supposed to be a dingy gray/brown, I decided to try the Zep Grout Cleaner & Brightener… I had no clue the grout was pale peachy PINK!
                          by
                            • Recommended
                            1 found this review helpful
                            No Elbow Grease Required
                            Just apply the product, wait a few minutes, brush gently with a grout brush, and wipe. So effective and so easy. In the picture, the top area has been cleaned. Worth every penny!
                            by
                              • Recommended
                              2 found this review helpful
                              Excellent product
                              We did not leave it for 3 mins. We used a tooth rush to scrub right away to prevent the tile from getting Duke and it worked so well! Our tiles look brand new again!
                              by
                                • Recommended
                                1 found this review helpful
                                Works!
                                Works great. Let solution soak for about 5 mins and very little scrubbing wiped with wet paper towel...cleaned really well can see the original color
                                by
                                  • Recommended
                                  HIGHLY recommend
                                  After many cleaning products and home remedy solutions I was just about ready to call a professional company to remove my shower grout. After doing a bit more research I came across this product and couldn’t be more pleased. Worked amazingly! Make sure you follow instructions and I recommend wearing gloves, long sleeves and pants and ventilate the area. Strong smell but nothing unbearable. And get a good grout brush!
                                  by
                                    • Recommended
                                    1 found this review helpful
                                    Showing 1-10 of 2,037 reviews

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                                    Product Snapshot

                                    Great for commercial and residential use, this grout cleaner effortlessly lifts tough, old stains, keeping tile color intact.
                                    Ideal for removing grout and mortar haze, rust, and mineral deposits from acid-resistant stone, tile, and grout.
                                    Great for homeowners looking for a versatile all-purpose cleaner, making cleaning easier and more efficient.
                                    Great for homeowners with heavily soiled tile and grout, making cleaning easier and more efficient.

                                    Surface Compatibility

                                    Disinfecting Capability

                                    Odor Elimination

                                    Mold and Mildew Control

                                    Fabric Freshening