Built-in 1” tile flange on 3 sideVacuum formed acrylic reinforced with fiberglassScratch, stain and fade resistantHigh gloss finishBathing well dimensions: 21” x 46” at bottomTub water depth from drain to overflow 343mmDrain opening: 51mm (2dia)Overflow opening: 64 mm (2-1/2 dia)Drain to floor clearance: 89 mm (3-1/2)60 x 30x 20