The TOTO USA IOT EFV Concealed Toilet features a 1.28 gallons per flush (GPF) system, promoting water efficiency without compromising performance. This innovative toilet design integrates an efficient flushing mechanism that minimizes water usage while ensuring powerful waste removal. Constructed with high-quality materials, it meets ANSI and other relevant standards for durability and reliability. The concealed design offers a sleek aesthetic, making it an ideal choice for modern bathrooms. This toilet is compatible with various plumbing systems, making installation straightforward and hassle-free.