Pro-Kleen Ultimate Black Spot Destroyer for Patio, Stone, Block Paving, Indian Sandstone, and more (15 Litres)

Excellent product.

Did exactly what it said it would do, our slabs look amazing, no more black spots and the colours have been brought back like new. We would definitely recommend this product.

Awesome job, removed most of the years of staining from walk in those areas.

I buy this product every summer. Only product to get the black spots of slabs my patio looks new every year I clean it

I bought 3 of these after reading the reviews but I wish I hadn’t … it hasn’t made one bit of difference to our patio… the black spots are just as bad as before we used it

With time the cleaning effects improve. Also ideal for killing weeds

Easy to apply and my driveway now looks like new.

did exactly what it said it would do