TOTO EcoPower® High-Efficiency Concealed 4" × 4" Toilet Flush Valve (V.B. Set) - 1.28 GPF

TOTO EcoPower® high-efficiency concealed toilet flush valve set for commercial back-spud installations. The 1.28 GPF assembly uses a self-powered hydroelectric system behind a 4 × 4-inch brushed stainless steel cover plate.

• 1.28 GPF automatic infrared sensor flush
• Back-spud configuration with concealed 1-inch angle stop and 1-1/2-inch vacuum breaker set
• Self-powered EcoPower system; no minimum daily usage requirement
• Smart sensor, manual override, self-cleaning piston valve and 24-hour trap-seal protection flush
• Standard, IoT Ready and IoT Enabled configurations

Official specifications: TET3LB specification · TET3LBi IoT series specification

Special order: Availability and lead times must be confirmed. Available to order does not indicate warehouse stock.

Source checked against the current TOTO USA product page on October 23, 2026.