EAGO TB340 Ultra Low Single Flush Eco-Friendly Ceramic Toilet, 1-Piece THE FUTURE OF AMERICAN TOILETS Ultra Low Flush (ULF) 1. 6/0. 8 Gallon flush. Living the Green Life Siphonic Flush System. New tower based mechanism. There is no chain to snap and no flapper to partially close leaving your toilet running Fully Glazed inside & out. The trap ways of EAGO toilets are perfectly glazed just as they are on the outer surface Large 2" fully glazed trap. Fully glazing the trap way ensures that waste flows smoothly to the exit with a single flush, each time Balanced water distribution. Designed to maintain the optimal balance between an increased diameter and proper exit velocity