A catcher for use with a liquid-jet-cutting equipment, comprises a housing (10) in which is formed a chamber (14), and the chamber replaceably confines an impingement block (16). A channel (12) opens into the chamber and onto the block for admitting and dissipating a stream of spent, cutting liquid, and for directing the liquid through a discharge port (30) in the housing to a reservoir. The impingement block is replaceable in the housing by removing a threaded closure (24) from an underlying housing wall (22).