A cuff pressure stabilizer includes two or more columnar units, which include respective input columns and respective output columns disposed at least partially alongside the respective input columns. The input column of an upstream-most columnar unit is shaped so as to define an upstream-most input port, which is coupleable in fluid communication with an inflation lumen proximal port of a catheter. The output column of a downstream-most columnar unit is shaped so as to define an atmosphere port that is open to the atmosphere. The columnar units include a measurement columnar unit, which includes a plurality of pressure indicia markings distributed along the measurement columnar unit for measuring a height difference between a surface level of the liquid in the measurement output column of the measurement columnar unit and a surface level of the liquid in the measurement input column of the measurement columnar unit.