Toto Ultimate 1.6 GPF Drain Valve Assembly Compatible with 853/854 Series Toilets - THU831-A

  • SKU #: TOTTHU831-A
  • UPC #: 739268453142
  • MPN #: THU831-A
MSRP: $46.00
$38.22
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Special Order, expect 4-6 weeks for delivery, subject to change
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Upgrade your TOTO one-piece wastewater system with the Genuine TOTO THU831-A Drain Valve Assembly. Engineered to replace older models (e.g., THU460.15E-A), this high-efficiency valve delivers smooth, reliable flushing at 1.6 gallons per flush. Designed specifically for TOTO 853/854 series toilets—including CST853, CST854, MS853113, MS854114—this valve ensures optimal performance and water efficiency. Crafted from durable materials and precision-engineered by TOTO, it's the trusted solution for maintenance, repair, or new installations.

  • Genuine TOTO OEM Part – Guaranteed fit for 853/854 one-piece toilet systems
  • 1.6?GPF Efficient Flush – Meets EPA Tier?3 and WaterSense standards; updated replacement for THU460.15E-A
  • Reliable & Durable – Precision-engineered and rigorously tested for long-lasting, clog-resistant operation
  • Wide Model Compatibility – Works with Ultimate, Bristol, Plymouth, Willingham, MS853113, MS854114, 853/854 series
  • Easy to Install – Direct swap-in with no toilet disassembly required—perfect for seamless repair jobs or upgrades
  • 1.6