Scum Off Shower Cleaner for Hard Water- 16 oz. is specially designed to tackle the toughest showers. Remove soap film, hard water stains, calcium deposits and grime from your shower doors and bathtubs without scrubbing again! It's safe on glass, fiberglass, tile & grout, porcelain, marble or granite! Scum Off is a concentrate so it has 100 times the cleaning power compared to bathroom cleaners bought in the store. Apply Scum Off full strength to a wet shower and let it sit, come back 30 minutes later and use your showerhead to simply spray down the shower without ever scrubbing. After your shower is clean mix 2 tablespoons of Scum Off to your own water at home and make your own daily shower spray for 10 cents a bottle! No more fumes, masks and gloves again! If you've tried every product on the market to clean your shower doors and none of them have worked, we have the answer for you! Scum Off is specially designed to clean hard water stains, calcium deposits and soap film without scrubbing! Scum Off works great on any shower surface like fiberglass, marble, granite, tile and glass doors, even ceramic stovetops! Quick N Brite is an environmentally safe all-purpose cleaner that has the power to make your toughest cleaning jobs a breeze! Eliminates the need for other household cleaners. It works instantly to erase dirty shower grime, deep clothing stains, grease build up on stoves and kitchen floors. Best of all, Quick N Brite is safe to use around your kids, pets and food. Quick N Brite has been pioneering the way in environmentally safe cleaners for over 56 years. The unique blends of non-toxic and biodegradable ingredients are eco-friendly, yet strong enough for the worst stains and messes. Quick N Brite works so well it was recommended by Better Homes & Gardens as an "all-time favorite." And remember, we always have a 100% satisfaction guarantee for as long as you own the product!