Ratings may include incentivized customer reviews.
What Customers Are Saying
The Soft Scrub Duo-Cubes toilet cleaner is reported to effectively clean toilets, leave a fresh scent, and be easy to use. Many customers found the cubes lasted several weeks and helped prevent hard water buildup and stains. However, some were disappointed the cubes did not last as long as claimed, with a few reporting issues like mold. Overall, the product seems to be a convenient and effective toilet cleaner, though the longevity may not fully meet expectations.
Customer review summary generated by AI, including incentivized reviews.COULD ONLY USE 2
Would Not RecommendI had my hope up it said safe for septic. Well got home followed the instructions place furthest from the valve. Wasn't impressed with blue but if it keeps bowl cleaner I'm game. Well no more bluish (lol). Dropped another cube after few flushes back to light blue water again. The bowl had to be cleaned several times sames as before. Cubes were no better on preventing or helping with cleaning. Was going to use up the package and throw the third cube in. Lift the back of the tank and was shocked!...
From Soft Scrub
INCONSISTENT
Would Not Recommendi bough this less than 1 month ago. i put in toilet and it wasn't turning blue, eventually after approx. 1 doz flushes, there was very very pale blue water in toilet bowl. yet on my 2nd toilet in the home the cube activated after the first flush. not impressed with this product, too inconsistent .
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Not what you say they are
Would Not RecommendThese cubes are supposed to last up to 4 weeks, maybe with one flush a day! Purchased some a week ago and one barely lasted 8 days. I guess 4 cubes would last 4 weeks!
From Soft Scrub
Not Worth the Price
Would Not RecommendThe commode I place this product in is used only a few times a week. That is just about how long it the cube lasted. As a longtime Soft Scrub user, I expected better results from these Duo Cubes. It was barely worth it as a BOGO item at our local grocery store.
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Algae farm creator!
Would Not RecommendI had really high hopes for this product. The first few weeks were blissful- sparkly clean, gently scented blue water and a clean bowl- exactly what I bought the cubes to achieve. Then one day I noticed some weird greenish floaters appear in the bowl after flushing. After several more days of ever-increasing floaters and suddenly weak flushes, I took the lid off the tank and was greeted with what can only be described as an algae farm. The toilet jets were clogged with the stuff, all of the toi...
From Soft Scrub
Disappointed
Would Not RecommendIt only lasted a week, very disappointing! Will not be buying this again!
From Soft Scrub
It reads, last 4 weeks for one cube notso.only one week and I live alone..
From Soft Scrub
Not what I was expecting
Would Not RecommendI recently purchased this product. On the positive side, I appreciate the color of the water in the toilet bowl after each flush. However, there are several drawbacks that have deterred me from giving it a great review. Firstly, the tabs don’t last long, which is inconvenient. Secondly, the tabs don’t effectively kill the bacteria in the toilet tank. Lastly, the colored water only partially covers up the dirt in the bowl, and I still have to clean it daily with a toilet brush. In conclusion, ...
From Soft Scrub
Not long lasting as claimed
Would Not RecommendBought 7/1/25…dropped in tank 7/3…product dissolved by 7/7 SMH. A cube DEFINITELY does not last 4 weeks!!! Misleading packaging. The only two positives (hence the 2 stars) is that it smells amazing and the cubes aren’t individually wrapped.
From Soft Scrub
Doesn’t last long enough.
Would Not RecommendI bought this product (4 pack) for the first time on 6/7/25 and it lasted less than 2 weeks. Very disappointing when the packaging states “lasts up to 4 weeks”.
From Soft Scrub
Danger!
Would Not RecommendThis colors the water but after using it, the toilet tanks grew mold! Specks showed up in bowl so I investigated and discovered. Pic before bleach and after. Won't let me add the pics.
From Soft Scrub
NOT worth the money!
Would Not RecommendI found this product to be almost useless! The first three cubes didn't last three weeks total, and the last one had mineral deposits returning in just 5 days! Before each cube went into the take, I scrubbed the bowl clean with a Scotch Bright pad to ensure it was clean, but the deposits returned within a few days! Does not work like stated on the package so I would suggest not wasting your money on this product!!
From Soft Scrub
No To Duo-Cubes
Would Not RecommendI bought the Sapphire Waters DUO-cubes I am so disappointed with this product. It was just sitting in the tank like a pile of mud. It worked one time the first flush after it had been installed for about 20 minutes to react with the water. That’s it and it's not doing anything but sitting in the toilet tank. No good!
From Soft Scrub
Dosent clean, only worsens and hides the staining
Would Not RecommendClaims to "Continuously Cleans" Yet all it's does is hide the stain caused by bacteria on the bowl. I had cleaned my toilet the day before buying this duo*cube. And my bowl is already turning brown below the water line. Only visible when flushing or if a 2nd flush occurs prior to the dieing of the water in the tank! I was expecting these cubes to reduce cleaning, not cover up and increase staining.
From Soft Scrub
Awful
These cubes left floating scum like residue in my tank! This made my water flow into the bowl slow down because the scum like stuff clogged the inlet holes to the bowl. I won't be using these anymore. I used a whole package. You should warn people that this could happen. This was the only product I used. Sorry I wasted my money.
From Soft Scrub
Doesn’t last
Would Not RecommendEach tab lasted only two weeks, if that. Did not keep the toilet from staining, just obscured the stains.
From Soft Scrub
False advertising
Would Not RecommendThis did not last 8 weeks like it said. Last a week at most. Waste of money.
From Soft Scrub
Product does not last
Would Not RecommendBrought this product and used 1 July 9 and July 17 completely gone and only 2 people in the house. I will not recommend or buy this product again
From Soft Scrub
Soft scrub Duo cubes
Would Not RecommendI’m very disappointed with this product it states that it works up to 16 weeks it should say 4weeks per cube. The product didn’t last 3 weeks I’ve used 2 cube in less then 30 days . I’m a one person home and work outside of the home 5 days a week .VERY Disappointed with the false claims
From Soft Scrub
Duo cubes terrible
Would Not RecommendI purchased these for a cleaner, safe for toilet, and the lasting time. But they only lasted maybe 2 weeks in 3 toilets. front says 16 weeks, and cleans. Back says does not disinfect and says up to 4 weeks. False advertisement and misleading, Will not buy again.
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