Premium Quality: The test pump is built with high-quality steel material, ensuring high hardness and long service life. Its handle is lengthened (22'/55.88 cm) and wrapped with anti-skid rubber for labor-saving and comfortable use. WARNING: This product can expose you to chemicals including Pb, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Precise Gauge: This pressure test pump is equipped with a precise gauge, which displays three units of bar/psi/MPa and has two pointers distinguished by black and red. It can test water pressure up to 50 bar/5MPa/725 psi. Dual Check Valves: With dual valves, the testing pressure pump enables a precise fine adjustment of the pressure. The twin valve system allows accurate and secure measurement results through the setting of exact pump self-checking pressure