CLR 28 oz. Calcium, Lime and Rust Remover-CL12 - The Home Depot
Message to Our Customers


Model # CL12

Internet # 100670289

Store SKU # 336808

28 oz. Calcium, Lime and Rust Remover

CLR 28 oz. Calcium, Lime and Rust Remover

This item has been discontinued.
The Home Depot no longer carries this specific product.

$5.87 / each


Model # CL12

Internet # 100670289

Store SKU # 336808

Store SO SKU # 336808

CLR's Powerful cleaning action; works instantly. The powerful, patented formula takes on tough calcium, lime deposits, scale and rust stains and is safe for various applications. Has unique formulation that cleans multiple items and surfaces including tubs, toilets, sinks, glass, fiberglass, stainless steel, stucco, brick, cement, HVAC, dehumidifiers, humidifiers, swamp coolers, porcelain and more. Many industrial and commercial uses in healthcare, manufacturing, automotive, energy, government and hospitality areas.

  • Safe on all septic tanks and plumbing including copper, plastic PVC, etc
  • Non-toxic; no hazardous solvents or harmful chemicals
  • EPA's DfE and USDA's Certified Biobased
  • Registered Kosher by Orthodox Union
  • Contains Lactic acid (industrial grade 15-20%), derived from a natural plant source
  • CLR’s unique formulation has multiple uses
  • Note: Product may vary by store

Info & Guides

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Product Size (oz.) 
Cleaning Product Type 
Rust & Lime Remover 
Product Form 
Professional/ Residential 
Suitable for Metal Only 
Warranty / Certifications
Manufacturer Warranty 
money back guarantee 


Rated 3.6 out of 5 by 35 reviewers.
Rated 5.0 out of 5.0 by Soap dispenser magic My sink-mounted liquid soap dispenser stopped working and someone at Home Depot recommended a CLR soak. Soaked the stainless head and pumping mechanism in full strength CLR overnight and PRESTO, working like new! I did wear latex gloves and safety glasses while working with CLR. One comment - - no directions for disposal on either the container or website. THAT would be really helpful as I am on septic and am leery about dumping anything down the drain. Any comments from Jelmar about how to properly dispose of this used product? February 8, 2015
Rated 5.0 out of 5.0 by removes effloresence on exposed aggregate Picked up a small bottle dropped off at a household hazardous waste site (I started) in my area. Used it to test its use on the exposed aggregate floor in the sun room; the floor had effloreced over 15 years of being covered with a rug (and a pool table.) Following the dilution and rinsing instructions, CLR got rid of the mineral salt discoloration. The floor is dark brown, so cleaned of the white stain, it looks pretty good now. January 31, 2015
Rated 5.0 out of 5.0 by Totally awesome. My home is not connected to town water supply so I depend on bore water for all washing and gardening. As a result my kitchen sink gathers a build up of Calcium and nothing would shift this buildup until I tried CLR. Worked magic in just seconds. The proof is in the pudding. December 9, 2014
Rated 5.0 out of 5.0 by One of the best products ever Left my good sissors outside, they were completely rusted. Put them in CLR for 20mins, they are like new again Thanks November 22, 2014
Rated 1.0 out of 5.0 by Coffe maker ruined MY NEGATIVE REVIEW FOR THIS PRODUCT IS WHEN USING IT TO CLEAN COFFEE MAKERS.....OTHER CLEANING APPLICATIONS WORK FINE!!!! I saw on CLR's web site that i was supposed to be a good cleaner for your coffee maker....I followed the directions in the video for my Kitchen Aid automatic and it has been unusable for coffee ever since. I have run 20+ cycles after the cleaning and it still reeks and taste like CLR. I have used CLR on many things with great success but do not use it to clean your coffee maker. You really need to remove anything on your site that recommends this use. September 1, 2014
Rated 5.0 out of 5.0 by OMG!!! awesome toilet crust cleaner!! I had thick build up of crusty stuff in the bowl that NO cleaner would touch. This worked completely. Took a little elbow grease and soaking but my nasty toilet is completely clean now. Will be using this once a month for maintaining now! Love it!!! October 11, 2014
Rated 4.0 out of 5.0 by Fabulous! I was at a local store in the plumbing department trying to figure out how to unclog my dishwasher. He was in an electronic chair and an employee with him. He seemed very knowledgeable about plumbing, so I asked him. He said CLR. He advised me to put it in my dishwasher and run an empty cycle then down my kitchen drains. It worked! In fact, it worked so well, I took it outside and used it on a very old 3-speed bike I bought at a rummage sale for $3. The back fender is looking good but I have to go get more now. August 15, 2014
Rated 1.0 out of 5.0 by Anything stronger? I just tried CLR on a glass sink that has been showing hard water deposits, and it had no impact on them whatsoever. I'm wondering if Jelmar makes a stronger product for the same application (CLR was recommended by the sink manufacturer) or if there are other ways I could be using it. I tried a 50/50 water mix, letting it sit for 2 minutes as the bottle recommended, and then tried pure CLR for the same period. Neither worked... August 27, 2014
  • 2015-05-04T10:58:39.800-05:00
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Store Exclusive. This item is available for purchase in select stores only.