View the Wavin entry on BPindex Visit the Wavin website The UK’s leading manufacturer of plastic pipe systems, Wavin, has updated its Osma DeepLine semi-elliptical guttering range, with a new, sleek ‘anthracite grey’ (RAL 7016) addition. The product matches the increasingly popular colour scheme being used for external windows and doors across the UK. The development of the new profiled gutter follows …