The Rock Bag or filter unit, has a simple design. Constructed of recycled synthetic material and filled with stones it protects marine structures from scouring processes while harnessing and maintaining the marine environment. Boasting a one-point lifting ring it provides a more cost effective method in comparison to traditional solutions. Its natural flexibility makes it very adaptable to the undulating topography of river and sea beds making it a key product for offshore and marine civil engineering works.
The Rock Bag or filter unit net is made from 61% recycled plastic bottles and is 100% environmentally friendly.
Stone fill inside the mesh net bag makes the entire structure flexible and adaptable.
Creation and installation of Rock Bags is so simple, it can be implemented with a minimal workforce.
The cost per unit and installation savings combined with the reduced lifetime O&M leads to a significant cost reduction.
What is a Filter Unit?
What they do
Where they are used
How they are made
Ridgeway Filter unit story
Filter Unit Installation
Filter Units for Civil Applications
Wind Wave & Tidal
Filter Units for Wind Wave & Tidal Applications
Oil & Gas
Filter Units for Oil & Gas Applications