Sealey cv2030 turbo system leakage tester hgv sealey cv2030 p this turbo system leakage tester from sealey is designed to charge the turbo intercooler system with a low pressure of regulated workshop air to show the presence of leaks within the system kit supplied with three pairs of stepped adaptors to fit most sizes of hose found on heavy commercial vehicles features a pressure gauge shut off valve and pressure release valve p sealey cv2030 turbo system leakage tester hgv