. Leg Riser Kit Suitable for 1300mm-1800mm Square and; Rectangular Trays Summary Convert low profile square & rectangular shower trays into a raised installation with our Purity Leg Riser Kit. Using this kit allows for easier fitting where plumbing above the floor is required. Features. Complete shower tray panel & leg pack Supplied with plinth legs clips & screws Feet ensure that the shower tray is level & supported Allows for easier fitting where plumbing above the floor is required Suitable for use with 1300mm to 1800mm Square and; Rectangular Shower Trays. View User Manual ยป.