The 503UH Series pressure-assist system uses only 0.75 gallons per flush (gpf). The new ultra-high efficiency system, which is compatible with Flushmate’s I-Flush technology, uses 53 percent less water than 1.6 gpf models without compromising performance.
EGO: 2026 Z6 Mowers
Hitachi: air365 Max with R-32
Interface: noravant
Kimball International: Etarran
Rinnai: REHP Series