For use with the K-18829-NA 2 x 4 in in-wall tank and carrier system, this durable flush actuator plate allows you to choose between 0.8 or 1.6 gallons per flush (gpf). Droplet® offers an organic aesthetic that complements the smooth lines of the Veil™ wall-hung toilet. Kohler® Flush Actuator Plate, Wall Mount, Droplet®, For Use with: K-18829-NA 2 x 4 in In-Wall Tank and Carrier System, Vibrant® Brushed Nickel, 3/8 in L x 8-7/8 in W x 6-5/16 in H