LINTELS & GRATES SM2 Lintel (COGB). B2 Barrier Lintel (COGB). V Grate Encased COGB SD480 (1200 x 600 SM2). More Info Coming Soon...... Sewer IS100 Covers.IS400 Covers and Shroud. ELECTRICAL 600 x 600 Elect pit.150mm Electrical Pit Riser.200mm Electrical Pit Riser.300mm Electrical Pit riser.600 x 600 Class D Cover. DRAINAGE Small profile Driveable End walls to suit.225mm and 300mm. Looking for a custom product? Lintels and drainage lids are available on request as well as any of our product range in sizing to suit you. contact our sales team