Niagara N7717EB-DF Stealth Ultra High Efficiency Elongated Toilet Bowl, White Ultra-High-Efficiency Flush Two efficient flush options - 0.95 GPF full and 0.5 GPF half Quiet 0.65 Average Flush Miso Flush Rating: 400g at 0.5 GPF / 800g at 0.95 GPF Extremely quiet flush