Pumice Stone for Swimming Pools, Spas, and other Surfaces by HDX

For removing hard water, rust, mineral and mildew stains from ceramic tile, grout and concrete surfaces. The 100% natural pumice material effectively dissolves stubborn stains and won’t harm your pool water. The stone fits comfortably in the palm of your hand, measuring about 6 in. In length and 1 1/2 in. In depth. Keep your tile and grout clean and looking new at all times.

• For tackling tough stains like hard water, rust, and mildew from ceramic, grout and concrete surfaces, using a pumice stone ensures a thorough clean
• 100% natural pumice is chemically neutral so when using to clean pool tile, rest assured the pumice will not harm or change your water’s chemistry
• Do not use on over-glazed decorated tile, glass, vinyl, fiberglass, wood, polished metal or plastic surfaces. Always test a small area before cleaning on any surface
• Easy-to -use, simply wet the stone and gently rub the stained or scaled surface until clean
• Pumice stone measures 1 1/2 in. X 6 in. for easy-handling