EasyCare ProTec Scale and Stain Remover, 8 oz. Bottle (2 Bottles - 16 Ounces) ProTec Scale & Stain Remover 8oz We have tried many others this is the best Product we have ever carried!! The powerful, dual-action formula of Protec makes it very easy to maintain the beauty of water statuary surfaces. Protec contains a unique blend of advanced organo-phosphonates for superior protection against both white calcium mineral buildup and metallic stains.