Create a watertight seal

Prevents water from seeping between the bathtub and the wall, protecting the wall structure from moisture damage and mold.

Allow alcove installation for drop-in tubs

Enables a drop-in tub (which normally doesn’t sit against walls) to be securely installed against one, two, or three walls — ideal for alcove or shower/tub combo installations.

Offer flexibility and retrofit compatibility

Because it’s external and removable, it can be added to tubs after manufacturing or on-site, allowing greater customization and saving time on renovation projects.

Ensure tile backing support

The flange acts as a guide or edge for wallboard and tile to sit over, giving a clean finish and structural integrity behind tiled walls.

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Our External Flange pair great with our Universal Bases allowing several different methods of installation