Pool Blok PB-12 by US Pumice, Pumice Stone for Cleaning of Pools, Tiles, Will Remove Lime, Rust, Stains from Pool Tiles Grout, 5.75x2.87x2.87 (1)

Key features

• REMOVES LIME AND CARBON BUILD UP - Get your swimming pool tiles clean and ready for the summer. Works where chemicals fail. Removes rust, mineral build-up, lime, stains, hard water stains deposits from ceramic tile with ease
• SAFE and FRIENDLY: Safe for most pool surfaces including tile, grout, concrete, and gunite. This Pumice Pool Tile Cleaning block will help you swimming pool regain its shine again
• Rubs out deposits without harm to ceramic tile or pool plaster. Will not upset the pool PH balance, Safe around children and pets
• FLOATS. No need to drain pool. Ideal as a Spot Cleaner. Shapes to any surface. Measures 3in x3in x 6in
• Not recommended for vinyl, acrylic fiberglass, wood or chrome surfaces. Always test a small inconspicuous area first.