Description
The Rock Block – The Monument Cleaning Block is made from recycled glass.
It removes calcium, limescale, rust, mildew and more! Rock Block cleans tile, grout, concrete and gunite.
Do not use on stainless steel, enamel, Corian, cultured marble or plastic surfaces. Rock Block is safe on most pool surfaces including tile, grout, concrete and gunite.
Always test in a small inconspicuous area before use!
