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Kohler Cimarron® 1.28 gpf toilet tank

SKU: 31615-0

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Product Details

Kohler 31615-0

This Cimarron toilet tank features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance. Pair this tank with the K-31588 bowl for a complete Cimarron K-31621 elongated toilet.


  • Finish White
  • Collection Cimarron
  • UPC 885612868213
  • Online Product ID 8307566
  • Width 8.26"
  • Height 14.75"
  • Depth 18.63"
  • Introduction Date 2/27/2020
  • Made In United States
  • Oversized yes
  • Made in USA yes
  • Flush Rate 1.28 gal/flush
  • Material Vitreous China
  • Shipping L:9.630"x W:20.000"x H:17.310" 35.010 lbs.

Additional information

  • Revolution 360 flush with Clean Coat is our cleanest flush yet
  • Easy installation with the new self-leveling tank system
  • Bowl, Seat and Supply Line Sold Separate
  • 1.28 gpf (4.8 lpf)
  • Left-hand Polished Chrome trip lever
  • Combines with the K-31588 bowl to create a complete K-31621 Cimarron elongated toilet
  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing

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