External Check Hinge

Hinges allow seat to be raised approximately 11° beyond the vertical position. This protects the seat by keeping it away from the flush valve.
The external check hinge can be found on the following seats:
255C 295C 397C 9500C 9400C 1580C 2155C 2055C 3155C 1955CFR 2L2155 2L2055 3L2150 3L2050 3L2155 3L2055