Mapei Ultraflex RS Premium Rapid-Setting Tile Mortar with Polymer, Gray speedset The reduced perimeter height means

The reduced perimeter height means you can build the shower floor flush with (or very close to) the bathroom floor level

just physics — but it's avoidable

this is the size that actually delivers on the "spa-like" promise

adhesives and more

a metal drain cover is a visual interruption

Mapei Ultraflex RS Premium Rapid-Setting Tile Mortar with Polymer, Gray speedset The reduced perimeter height meansSetting tile? Ultraflex RS Premium Rapid Setting Tile Mortar with Polymer, Gray is the thinset that goes between your tile and the substrate. Rapid setting formula gets you grouting same day instead of next day useful when the schedule's tight or you're working in a heated floor area where slow cure is a problem. Use under tile from 2 to 3 thickness. ANSI A118. 4