High-Flow 90mm Waste and Steel Chrome Finish Grid. Features a vented grille for higher water flow, designed for MX Minerals shower trays but compatible with any tray having the same waste opening size. The waste cover measures 118.5mm x 118.5mm. Easy to clean and maintain with a quick-release inner unit. Manufactured to BSEN1329/1:2000 and BSEN1451/1:2000 standards. Comes with a 1-year manufacturer's guarantee. Designed to connect directly to the shower tray waste and a standard 40mm (1 1/2 inch) waste pipe. Offers a water flow of up to 40 litres per minute and includes an offset elbow.