The Pro Products RBG-0500 is a 6 oz concentrated gel formula specifically designed to remove tough rust, iron, and manganese stains from household surfaces. It works on porcelain, fiberglass, ceramic tile, grout, concrete, laminate countertops, and stainless steel. The thick gel consistency allows it to cling to vertical surfaces like toilet bowls, sinks, and tubs without running off, making it ideal for targeted stain removal caused by hard water or well water containing iron.

Shake the 6 oz bottle well before use. Apply a small amount of the RBG-0500 gel directly onto the rust or iron stain and let it sit for 30 seconds to a few minutes, depending on stain severity. For stubborn stains, gently scrub with a non-abrasive sponge or brush, then rinse thoroughly with clean water. Always test on an inconspicuous area first and avoid using on fabrics, carpets, or natural stone surfaces such as marble or granite.

Yes, the RBG-0500 is formulated to be safe for use in homes with septic systems when used as directed. However, because it contains active stain-removing acids, you should avoid prolonged contact with metal fixtures, chrome, or enamel finishes. Always rinse the treated area thoroughly after application to prevent any residual reaction. Use gloves and ensure adequate ventilation during application for personal safety.

The Pro Products RBG-0500 6 oz bottle has a typical shelf life of approximately 2 years when stored properly. Keep the bottle tightly sealed in a cool, dry place away from direct sunlight and out of reach of children and pets. Do not allow the product to freeze, as this can affect the gel's consistency and performance. Each 6 oz bottle provides multiple applications depending on stain size and severity.

Yes, the RBG-0500 is an excellent companion product for households already using Pro Products iron filters or water softeners. While your filtration system prevents new iron and rust stains from forming, the RBG-0500 removes existing stains that were present before installation or from occasional system bypass. For long-term stain prevention, pair it with Pro Products Rust Out or Iron Out cleaners designed specifically for softener resin tanks and plumbing maintenance.