Pro Ban T citric acid removes iron and other contaminants from fouled water softeners and backwashing filters, including iron & sulfur filters. Subsequently, it increases the capacity and efficiency of the units as well. Ban T should be used as preventative maintenance on all water softeners and filters in areas with moderate iron content. This safe, environmentally-friendly cleaning agent is non-toxic, non-corrosive, biodegradable, and can be used safely on virtually all surfaces. It removes hard water spots, lime, ruse and scale deposits on fixtures and appliances. The 4.0 lb. bottle is good for 4-6 uses. Case of 6 bottles - 4.0 lbs. each (64 oz.).Product FeaturesPro Ban TPro Ban T citiric acid (formerly Pro-Citric Acid)Case of 6 BottlesCase of 6 bottles. Eash bottle is 4.0 lb. (64 oz.) is good for 4-6 usesNon-toxic & Non-hazardousHas little odor and is environmentally friendly and safeSoftener & Filter CleanerCitric acid works great at removing iron and other contaminants from water softeners and backwashing filters, subsequently increasing the capacity and efficiency of the units.Multi-Surface CleanerSafe to use on most surfaces, including fiberglass, porcelain, glass, stainless steel and chrome. Great from cleaining hard water deposits from tubs, sinks, showers, faucets, ceramic tile, dishes, glassware, plasticware, ice machines, ultraviolet filters, humidifiers and distillers.pH AdjusterUse as a pH adjuster in alkaline water sources with high pH levelsProduct DescriptionPro Ban T citric acid removes iron and other contaminants from fouled water softeners and backwashing filters, including iron & sulfur filters. Subsequently, it increases the capacity and efficie