Amazon.com: DALUOBO Pentagonal Steel Shower Tray Support Frame for Steel Base with and Acrylic Shower Trays from 29.5 inch to 39.4 X 39.4 inch (Long Legs) : Home & Kitchen
Balterley Shower Tray Leg Set with Straight Plinth - 1700 x 1000mm | Homebase
Shower Tray Support Frame With 5 Legs For Super-flat Rectangles, 5-corner & 1/4-circle Shower Trays Made Of Steel, Acrylic, Mine - Shower Trays - AliExpress