Americh TA6636T-BI Tau 6636 - Tub Only - BiscuitProduct Info Description This sleek, clean, remarkable modern day design with its gorgeous marvelous deck design is a hand crafted radiant center piece. The Tau is part of the Americh Freestanding Collection and can be purchased as a Tub Only Airbath System II or Tub Only. The Tau includes an integral waste & overflow with Polished Chrome, and is available in all Americh Standard Colors. The Tau also features a dual color option. Gallons to Overflow: