

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ZEP INC ZUCAL32 is a concentrated calcium, lime, and rust stain remover formulated to dissolve hard water deposits, calcium scale, lime buildup, and rust stains from surfaces commonly found in plumbing, HVAC, and mechanical systems. Sold in a 32-oz bottle, it is a commercial-grade concentrate designed for use by trade professionals who need fast-acting chemical action without extended dwell times. The concentrate formula allows for dilution based on the severity of the deposit, making it efficient across light maintenance and heavy-scale removal applications.
This product is suited for residential and light commercial applications where calcium and lime scale accumulate on fixtures, coils, drain pans, heat exchangers, and plumbing surfaces. HVAC technicians use it to clear condensate drain pans and coil surfaces. Plumbers apply it to remove hard water deposits from fixtures and pipe fittings. It is appropriate for use in areas with high-mineral-content water where scale buildup is a recurring service issue.
Designed for use on surfaces where calcium, lime, rust, and hard water deposits accumulate, including plumbing fixtures, HVAC drain pans, coils, and mechanical equipment surfaces. Always verify material compatibility before applying to coated, anodized, or sensitive metal surfaces.
This product is a chemical cleaner applied by plumbers, HVAC technicians, and maintenance professionals. Follow all label directions for dilution ratios and contact time. Wear appropriate personal protective equipment including gloves and eye protection during application. Ensure adequate ventilation when using in enclosed mechanical spaces, and avoid contact with surfaces not rated for acid-based cleaners.
Thanks for subscribing!
This email has been registered!