American Standard Pressure Assist 1.6 gpf/6.0 Lpf Right-Hand Trip Lever EverClean Tank With Tank Cover Locking Device - AMS-4142900

It's a pressure-assist tank, rated 1.6 gpf / 6.0 Lpf. Pressure assist uses line pressure stored in an internal vessel to force the flush, which is why these are common in offices, schools and other high-traffic restrooms. It is not interchangeable with a gravity tank of the same bowl series, so if the bowl was originally specified for gravity flushing, this is the wrong tank.

Right-hand. The trip lever is chrome plated and mounted on the right side of the tank as you face it. If the existing fixture has the lever on the left, or the stall layout puts a partition or wall tight to the right side, this tank will not match the handing you need.

Yes, a TCLD (tank cover locking device) is included. That's the feature institutional buyers ask for in public restrooms, schools, correctional and transit facilities where an unsecured lid invites tampering or damage.

No. Coupling components ship with the tank, so the tank-to-bowl hardware is covered. What is not in the box is the bowl itself, the closet supply line and the seat, so plan those separately if this is a full fixture replacement rather than a tank swap.

Yes, the 4142900 is sold as a tank on its own, with the trip lever, the locking lid device and the coupling hardware. It only works if the existing bowl was designed for a pressure-assist tank and the original flush volume was 1.6 gpf. Match the bowl's original American Standard tank number before ordering a replacement tank.

EverClean is American Standard's antimicrobial surface treatment on the china, meant to inhibit the growth of stain and odor causing bacteria, mold and mildew on the glazed surface. It's a housekeeping benefit in high-use commercial restrooms; it does not change the flush rate, which stays at 1.6 gpf / 6.0 Lpf.