The waste is partly under the floor level,you have to leave space for the waste and pipe to run in the floor,so you can not install the tray on a concrete floor,but you can buy the riser kits to get it sorted.
Aica 1400x900x30mm Slimline Rectangle Shower Enclosure Bathroom Tray Free Waste
Aica Luxury Quality 1950mm Frameless Sliding Shower Enclosure Door Safety Glass
Aica Slimline Rectangle/Square/Quadrant Shower Enclosure Stone Tray Free Waste
Aica Rectangle/Square/Quadrant Stone Shower Tray Free Waste
New Aica 30mm slimline shower enclosure stone tray free waste rectangle square
AICA Shower Enclosure Walk In Shower Door Slimline Square Rectangle Stone Tray
