BLUE METAL 20MM TONNE

20mm Blue Metal gravel is a chunkier (than 10mm) screened aggregate that's a certified product used for drainage by plumbers. Its a hard, slow to break down product thats used for trenches, around piping and drainage on both commercial, industrial and residential building projects. Its also known as aggregate and is sold both bulk and bags. Colour may vary as its a genuine quaried product.