Calcium, Lime and Rust Remover
Best heavy-duty cleaner for removing stubborn mineral buildup and hard water.
Tackle tough buildup with CLR PRO Calcium, Lime and Rust Remover. This powerful 1-gallon liquid cleaner effectively dissolves stubborn calcium, lime, rust, mineral deposits, hard water stains, and oxidation. Certified EPA's Safer Choice and NSF Certified for food facilities, its non-toxic formula is free from bleach and ammonia, making it safe for plumbing and septic systems. Ideal for various surfaces and appliances like dishwashers and coffeepots, it offers a trusted, multi-use cleaning solution for both home and commercial needs.
$30.67
Owner Satisfaction
4.5
/ 5
Category Rank
104
/ 196
#104 in Descalers & Decalcifiers
Price vs Category Average
-23%
Below average
Capacity (Volume)
1
/ gal
Who it's for
- Homeowners tackling stubborn, long-term mineral buildup
- Cleaners managing diverse bathroom and kitchen fixtures
- Busy individuals needing rapid results for deep cleaning
Who should skip it
- Users sensitive to harsh chemicals or lacking protective gear
- Owners of natural stone or delicate antique surfaces
- People with limited ventilation or chemical scent sensitivities
Performance breakdown
Descaling Efficacy
Rapidly dissolves stubborn mineral buildup and oxidation on contact.
Surface Versatility
Safe for use across diverse materials from glass to industrial metal.
Safety Profile
EPA Safer Choice certification ensures a non-toxic, bleach-free cleaning experience.
Operational Convenience
Ready-to-use formula eliminates the need for complex mixing or dilution.
Food Safety Compliance
NSF certification makes it ideal for sanitizing commercial kitchen appliances.
Plumbing Compatibility
Gentle enough for standard plumbing and sensitive septic system environments.
Key Specs
Capacity (Volume)
1 gal
Physical Form
Liquid
Scent
Unscented
Applicable Material
Ceramics, Enamel, Fiberglass, Glass, Metal, Plastic, Vinyl
Dirt Types
Calcium, Lime, Mineral Scale, Rust
Compliance Standards
EPA Safer Choice Label; NSF Certified; USDA Certified Biobased 80%
Packing Type
Bottle
Weight
9.00 lbs
Features
- Dissolves calcium, lime, and rust deposits
- EPA's Safer Choice certified formula
- NSF Certified for food facility use
- Non-toxic and plumbing/septic safe
- Free from phosphate, bleach, and ammonia
- Powerful multi-use cleaner
- Removes hard water stains and oxidation
- Approved for various surfaces and appliances
What customers say
Customers highly value JELMAR's CLR for its unmatched power against stubborn mineral buildup and rust, especially where hard water is an issue. Reviewers consistently report that this specialized cleaner rapidly dissolves tough stains on fixtures and appliances, saving significant effort. The core sentiment centers on its exceptional cleaning performance, making it a highly recommended staple for difficult jobs. However, users stress that its potency demands respect. The strong odor necessitates good ventilation and protective gear. Furthermore, precise adherence to dilution instructions is crucial to prevent damage to sensitive surfaces like natural stone or certain tiles. Despite these handling requirements, its effectiveness in solving niche cleaning problems delivers outstanding value.
Know before you buy
While it is effective on many metals, it is not recommended for use on natural stone, colored grout, painted or metallic-glazed surfaces, or certain types of aluminum. Always test a small, inconspicuous area first to ensure surface compatibility.
Yes, this product is effective for descaling coffee makers. Ensure you follow the manufacturer's instructions for your specific appliance and rinse the machine thoroughly with fresh water after the cleaning cycle.
No, this formula is ready to use straight from the bottle. You do not need to dilute it with water for standard cleaning tasks.
Yes, the formula is septic-safe. It is free from bleach, ammonia, and phosphates, making it a responsible choice for homes connected to septic tanks.
Yes, the product is NSF certified for use in food facilities. However, you must thoroughly rinse any surface that comes into direct contact with food with clean water after cleaning.
No, this product is not classified as child or pet safe. Always store the bottle securely out of reach and ensure the area is well-ventilated during and after use.
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