The Supa River keepnet is robust and ideal for use on canals and rivers with a lot of traffic. Made from a CNC metal block threaded in both horizontal and vertical directions. The coarse, rectangular mesh (6x9mm) is highly abrasion resistant with relatively large openings, allowing water to flow through easily, making it less likely to be pulled out of place. The top aluminium ring has an enlarged diameter, while the other rings are each fitted with a protective, wear-resistant layer. The bottom has two attachment points for adding weight if desired.