D-Line White Semi-circle Trunking length,(W)50mm (L)2m (H)25mm | DIY at B&Q
100mm x 50mm Cable Ducting | MJS Electrical Supplies
50/63mm x 50m Green Underground CCTV Fibre Optic Twinwall Ducting Coil - United Civils Supplies
1STec 50m Underground Cable Conduit Ducting Hose Pipe Channel for TV Coax, Electric Wire, Garden Lights, Fish Pond Low Voltage Pumps, Power Socket Lead Burial (50 Metre, 20mm External 14mm Internal) :