CLRPRO Calcium, Lime & Rust Remover - Quickly Removes Calcium, Lime, Hard Water Deposits and Surface Rust Stains, 32 Ounce Spray (Pack of 2)U.S. EPA Safer Choice

I had a dripping showerhead for months. Took a long time until my son could replace a part. As a result, there was a lot of hard water and rust buildup. I laid down paper towels, soaked them with the CLR and let it soak for hrs. I scrubbed with a brush and a bunch of the stains came off,. I repeated the process the next day. Perfect. Looks great. Thanks for a great product.

I had some rust stains in my shower and wanted to get rid of them.. I thought I would give this product a try and I have to say that I’m very glad that I did. I sprayed this product directly on the rust stains and gave it about 10 minutes before wiping it off. The result was a nice clean shower. The product came in a couple days after ordering and is very economical to use. I would recommend this product. Amy

Worked really well, made a yellow porcelain sink white again!

I messed up the inside of my LG stove by using EASY-OFF oven cleaner!!! I forgot to take a pic of the residue because I was so upset & distraught...I went online and found out that CLR PRO will get rid of the residue but the EASY-OFF oven cleaner ate the shine off the blue enamel inside the oven...I used some Meguiars M716 Mirror Glaze to help with the dullness from the EASY-OFF

Editing this to add...but it works! I poured the stuff from their leaky bottle to another spray bottle and used it. It's does a great job of removing hard water stains. Best stuff I've tried for doing this.Both bottles leaked very badly when sprayer was installed and when spraying after. I double checked how I was doing everything, and had two others check also. Nobody could figure how to stop the horrible leakage. Since this is pretty caustic stuff, that's a real problem. There are a couple of other bad reviews that reference this.

Child proof caps have to be taken off with pliers and screwdriver. They are definitely child proof.

Used this for our kitchen faucet and shower heads. Our house has hard water so calcium built up. This CLR broke down the calcium in minutes. Very pleased!

This stuff works great. I've used CLR for years, but the spray option is much nicer to use than the old gray bottles. I did have trouble with one of the tops...but I just put the other one in instead and will swap it into the 2nd bottle when the time comes. Great deal too