Products Benthic Sledge Net Midwater Trawlers Surface Skimmer Midwater Frame Net Traditional Ring Net Use this pull-down menu to see different types of nets. Benthic sledge net with coarse mesh chafer Mouth of Benthic net. The D-rings which attach the side of the mouth to the sledge are set back and closely spaced to minimise catch leakage between net and frame. Cod end of Benthic net. This simple but effective design by the Net Works combines strong fastening with easy opening and has been successfully used at sea by the Institute of Oceanographic Sciences since 1975 Contact Bob Aldred at THE NET WORKS: Shobdon Airfield, Leominster, Herefordshire HR6 9NR. telephone & fax: (+44) (0) 1568 708620 - bob@thenetworks.biz