WALS 5 Gallon Bag 20mm Radon Rock
WALS 5 Gallon Bag 20mm Radon Rock is also known as 20mm Drainage Rocks or Radon stone. Radon rock is tan-grey in color. It is most commonly used for foundation,basement, backfill, drainage and roofing. Radon Rock are used undersides of building foundations. These are a naturally occurring material that are used in construction and landscaping.
NOTE: These rocks are not washed rocks, they are still covered in dust from crushing, quarry, & transportation. These rocks can be washed before/after spreading. You could also spread it in the landscape area and let it be washed by the next rainfall.