Pool Blok Pumice Stone

Pool Blok® is a 100% natural pumice stone block designed to safely scrub away lime, rust, algae, hard-water scale, and stains from pool tile, concrete, grout, and gunite without chemicals or draining.

• Powerful, chemical-free cleaning: Removes tough mineral, algae, and rust stains via gentle abrasion—no harsh cleaners needed 

• Safe for pool surfaces: Chemically neutral—won’t affect pH, safe for ceramic, concrete, tile, and grout; use underwater with no damage

• Custom-fit cleaning: Conforms to curved surfaces and floats for easy, targeted use without full pool drain-down

• Eco-friendly & non-toxic: Made from natural pumice with no added chemicals—safe around kids, pets, and the environment 

• Multiple sizes available: Choose from handheld, large (PB‑24), or pole-adapted (PB‑86) blocks for all cleaning needs