4" Perforated w/Sock Big O Drainage Pipe Wall Stone It is ground to a

It is ground to a uniform fibrous texture

Guaranteed not to stain

One 56 litre bag (112 litres loose) allows to fill approximately:

Varies from gray to light brown

**Disclaimer:  please keep in mind that stone is a natural product and that it may not look exactly like the picture**

4" Perforated w/Sock Big O Drainage Pipe Wall Stone It is ground to aSold only by a 100 foot roll. The sock material will prevent the fines from crushed rock or soil from clogging up the inlet holes in your perforated pipe. Available in 4'' diameter. Big 'O' Corrugated Pipe is High Density Polyethylene (HDPE). Available in solid, perforated and perforated with sock. It is an excellent choice for foundation drainage and other groundwater applications.