Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is effective at removing rust, calcium buildup, and unclogging drains. Many customers report it works well with minimal scrubbing required. However, some caution it is quite strong and caustic, so safety precautions are advised. A small number felt it did not perform as expected on certain applications. Overall, the majority of customers are satisfied with the cleaning power and effectiveness of the product.
Customer review summary generated by AI, including incentivized reviews.Works great, but got to give it time when cleaning
Would RecommendStill my favorite to remove calcium and scaling build up. Works best straight, diluted in a toilet bowl, give it overnight and some brushing time to remove iron scaling. There may be other products that work better. Maybe a coke?
Verified Purchaser
CLR
Would RecommendWorks great at removing grime
Verified Purchaser
It’s not just for toilet bowls!
Would RecommendI had been trying everything imaginable to remove hard water stains from my windows. I sprayed CLR on and used a squeegee and it removed it
Verified Purchaser
Use a small amount
Would RecommendIt works very easy
Verified Purchaser
Worked
Would RecommendWorked great cleaning calcium build up from hard water.
Verified Purchaser
Wrked
Would RecommendWorked well to increase water pressure in faucets
Verified Purchaser
Clogged or drity shower heads clean up like new
Would RecommendWorks great
Verified Purchaser
Worked okay
Would RecommendDidn't work as advertised
Verified Purchaser
Takes hard water stains off
Would RecommendReally works
Verified Purchaser
My opinion "do not buy."
Would Not RecommendIt would not remove the calcium buildup as advertised.
Verified Purchaser
This stuff really works.
Would RecommendI completely removed the rust in the old toilet.
Verified Purchaser
Showerhead like New
Would RecommendThis item worked extremely well. Removed all the buildup on the showerhead.
Verified Purchaser