Sanitary ceramics. dual-flush 1.6/0.8 gpf, push button in chrome finish. Flushing mechanism finishes: in chrome . meets and exceeds ASME A112.19.2/CSA B45.1 ASME A112.19.14, EPA - Watersense, Code Compliance: UPC, IPC, NSPC, NPC Canada and others. one year limited warranty. min Water pressure: 8 psi