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CLR Calcium, Lime and Rust Remover is a powerful formula that quickly and easily dissolves and removes tough calcium and lime deposits as well as surface rust stains from bathtubs, toilet bowls, sinks, glass, chrome, fiberglass, stainless steel, most coffee makers, humidifiers, dishwashers, washing machines and shower heads. The formula also is perfect for use on RVs and boats. CLR Calcium, Lime and Rust Remover is part of the EPAs Safer Choice Program, recognizing the product as a safer alternative to chemicals. The fast-acting, powerful CLR formula is septic-safe and contains no phosphates. Always spot test in an inconspicuous area before beginning to clean.

Patented calcium, lime, and rust remover for cleaning multiple surfaces
Powerful formula - effective on hardest of lime and calcium buildup
Great for cleaning bathtubs, toilet bowls, sinks, glass, chrome, fiberglass, stainless steel, most coffee makers, humidifiers, dishwashers, washing machines and shower heads
Safe for plumbing, safe for use on white grout, septic-safe, biodegradable
Dissolves scale: lime from shower heads, tubs, humidifiers, toilets, and sinks

General
Package Quantity	1	Unit of Measure	Ounce(s)
Unit of Measure Quantity	128

Dimensions
Container Size	1-gallon

Features
Removes Calcium	Yes	Scrub-Free	No
Removes Lime	Yes

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	None

Miscellaneous
UNSPSC	15121800

Check out the Best Selling Rust Removers on Lowes.com

Review

4.5 out of 5

1391 Reviews

89% Recommend this product

Ratings may include incentivized customer reviews.

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+ 9

What Customers Are Saying

Customers overwhelmingly praise this product for its exceptional effectiveness in removing hard water stains, calcium deposits, lime buildup, and rust from household surfaces. Most users report consistent, reliable results on toilets, showerheads, faucets, sinks, and tools, with many describing it as the best solution for stubborn mineral and rust issues. Reviewers highlight its ability to restore fixtures to near-new condition and note its versatility across multiple surfaces including coffee makers and driveways. A small number report it did not work for their specific situation, particularly on heavily embedded stains or outdoor rust. Overall, most customers consider it a trusted, go-to cleaner that delivers as advertised.

Customer review summary generated by AI, including incentivized reviews.

1391 Customer Reviews

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good value for the money- actually works

This works so well for the buildup in our sink. I like to put some in a spray bottle and mark it for easier use.

BG23October 2, 2026
From 28.0 Ounce(s) Rust Remover Verified Purchaser

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As advertised

I find this product to be very useful in my daily and deep cleaning needs.

Elmo1058October 2, 2026
Verified Purchaser

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Good cleaner

This works good on hard water stains. I am glad I tried it.

Rose54September 30, 2026
Verified Purchaser

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Use this product before and it worked well. We like to keep it on hand

RMW301September 30, 2026
Verified Purchaser

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Rust Remover

Would Recommend

I bought this to get rid of some rust and it did the job.

12cowboy33September 27, 2026
From 28.0 Ounce(s) Rust Remover Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item CLR128 Ounce(s) Rust Remover
		Ratings	1391
		UNSPSC	15121800
		Warranty	None
		CA Residents: Prop 65 Warning(s)
RustAidRust Aid 128 Fluid ounce(s) Rust Remover	CLR Multi-Use Calcium Lime and Rust Remover - 28 Ounce Bottle (Set of 2) for Effective Cleaning	ZepCalcium, Lime and Rust Stain 4 -Pack 128 Fluid ounce(s) Rust Remover	RustAidBathroom 128 Fluid ounce(s) Rust Remover	CorrosealCorroseal water-based rust converter metal primer 128 Fluid ounce(s) Rust Remover	BlasterMetal Rescue Rust Remover Bath 1 Gallons Rust Remover	Rust BulletMetal Blast, Rust Remover, Metal Cleaner and Conditioner 1.1 Gallons Rust Remover	Rust BulletMetal Blast, Rust Remover, Metal Cleaner and Conditioner 1 Gallons Rust Remover	Kano KroilExRust 16 Ounce(s) Rust Remover
13		74	42	46	2	1	1	18
15121800	15121800	15121800	15121800	15121800	15121800	15121800	15121800	15121800
None	1-year	None	None	None	None	1-year limited	1-year limited	5-year limited