The True E851134 Cap Tube helps regulate refrigerant flow to support stable cooling performance in commercial kitchen equipment. This capillary tube is designed for compatible True refrigeration systems and functions as a metering device that controls the amount of refrigerant entering the evaporator. By restricting and directing the refrigerant flow through a narrow tube, it allows the system to maintain proper pressure differences required for effective cooling. This controlled flow supports consistent temperature levels inside the refrigeration unit. Built for reliable operation, the cap tube helps maintain efficient system performance, supports proper refrigeration cycles, and contributes to the dependable day-to-day operation of professional foodservice refrigeration equipment.