The Works Tub & Shower Cleaner Refill
Exceptional cleaning power against rust stains as well as lime, calcium, magnesium, and other minerals found in hard water. This unique formula eliminates hard water stains on contact. There's no scrubbing needed - just spray and rinse away soils. 32 fl. oz. (1 quart). Refer to model No. 03393 for the trigger spray bottle.