which have a unique self-locking mechanism powered by four heavy-duty spring breaks

Proprietary/Universal: Proprietary

Bobrick 1000636 W/H U/S Bracket 3/4" Repair Part for Washroom Products

Concealed Vacuum Breaker

Bradley S45-974 Pf-1030 0-4"Wall Replacement Part

Fluidmaster Trip Lever, Fits Brand Universal Fit, For Use with Series Universal Fit, Toilets, Gravity Tanks - Pro 64 Frame Finish-Bright Polished which have a unique self-lockingGravity tank trip levers are replacement components for the handles used to trigger flushing of gravity flush toilets. They're used to replace levers that have loosened, are sagging, or no longer activate flushing.,Gravity tank repair parts help fix leaks and restore proper flushing on gravity flush toilets to avoid the expense of replacing the entire toilet. These toilet tank parts are used to replace broken or worn parts on gravity fed tanks