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TOTO TOTO® Aquia IV® 1G® Arc Dual Flush 1.0 and 0.8 GPF Toilet Tank Only with WASHLET®+ Auto Flush Compatibility, Cotton White

SKU: ST448UMA#01

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  • Product Type Toilet Tank
  • Length 6.63"  Width 19"  Height 13.81"  Weight 29 lbs. 
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Product Details

TOTO ST448UMA#01

The TOTO Aquia IV 1G Arc Dual Flush 1.0 and 0.8 GPF Auto Flush Compatible Toilet Tank is designed for use with the Aquia IV dual flush bowl. The curved shape offers a contemporary and sleek design to complete your bathroom. Features TOTO''s Dual-Max dual flush option, allowing you to proactively conserve water usage, allowing you to choose between a 0.8 GPF rinse or 1.0 GPF for tougher jobs. This version of the Aquia tank offers TOTO T40 WASHLET and Auto Flush compatibility for when you are ready to upgrade to a hands-free flush system with electronic bidet seat. The Aquia IV Cube tank meets the standards for EPA WaterSense®, and California’s CEC and CALGreen requirements. The Aquia IV Arc includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts, water supply lines, and optional WASHLET with Auto Flush kit purchased separately. The Aquia IV tank should be used with Aquia IV bowls.


  • Finish Cotton White
  • Collection Aquia
  • UPC 739268386983
  • Online Product ID 9156960
  • Length 6.63"
  • Width 19"
  • Height 13.81"
  • Weight 29 lbs.
  • Made In Mexico
  • Oversized yes
  • Watersense yes
  • Flush Rate 1.0,0.8 gal/flush
  • ADA yes
  • Material Vitreous China
  • Warranty Manufacturer One Year Limited

Additional information

  • Aquia IV 1G Arc toilet tank for use with Aquia IV toilet bowl
  • Dual flush system allows you to proactively conserve water - Select 1.0 GPF or 0.8 GPF
  • Left Hand Trip Lever
  • Auto Flush compataible
  • WaterSense®, CALGreen, and CEC compliant
  • Included parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps
  • Purchased separately: Aquia IV bowl, wax ring, toilet mounting bolts, water supply lines, and optional WASHLET+ with Auto Flush kit

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