Toto IoT EFV,CONCEALED,TOILET 1.0G TET3UBI4#SS

Toilet. The TET3UBI4#SS is a toilet flush valve, not a urinal valve, and it flushes at 1.0 gallon. If you are specifying for urinals in the same restroom, you need a separate urinal-application valve with the matching urinal flush volume.

It is a concealed valve, so the body sits behind the finished wall and only the sensor plate shows in the room. That means you need wall access or a chase and the rough-in has to be set before the wall is closed. If you are replacing an exposed chrome flushometer on an existing wall with no chase, a concealed valve is the wrong choice; specify an exposed electronic flush valve instead.

The TET3UBI4#SS is a 1.0 gallon toilet valve, so it has to go on a flushometer-valve (tank-free) bowl rated for 1.0 gpf. Bowls designed for 1.6 gpf or 1.28 gpf siphon action can carry waste poorly at 1.0 gallon, and tank-type toilets cannot use a flush valve at all. Match the bowl's stamped flush rating to the valve before you order.

EFV stands for electronic flush valve: it flushes on sensor actuation rather than a manual handle, so the fixture is hands-free. The IoT designation means the valve is network-connected for remote monitoring of fixture activity, which is why facilities groups in airports, stadiums, and large institutional restrooms specify it over a plain battery sensor valve. If you only need touchless operation on a handful of fixtures and no data, a conventional electronic flush valve covers it.

Order TOTO TET3UBI4#SS. That full designation, including the #SS suffix, is the orderable part number for the concealed 1.0 gallon IoT electronic toilet flush valve. Give it to your distributor exactly as written, since TOTO uses the suffix after the hash to designate finish and a different suffix is a different stocked item.

Only the toilets. TET3UBI4#SS is built for toilet application at 1.0 gallon, so a building standard using it covers the water closets while urinals still need their own electronic valve. Property managers standardizing a multi-floor restroom package usually pair one toilet EFV model with one urinal EFV model from the same series so the sensor plates and controls match visually across every fixture.