Aston SEN979-TR-MB-48-10-L is a shower enclosure with tray that is designed to be used with tiled walls. It features tempered safety glass and high-quality hardware. The shower door is not reversible and can only be installed with the door opening from right to left. The shower tray needs to sit on a flat level base for proper support and must be installed so that the tile lip is against the wall studs. The shower door is designed to be installed using the connection point to the studs or to pre-installed 2x6 wood reinforcements behind the wall.