The Hydrostatic Hand Pump is a precision manual testing tool for detecting leaks in systems that must remain leak-proof under pressure. Capable of testing up to 725psi, it’s ideal for use in heating systems, compressed air lines, refrigeration units, oil installations, sprinkler systems and small bore pipework. It's easy to use as it requires minimal effort to operate, maintains pressure automatically without manual valve adjustment and features inlet and outlet filters for enhanced reliability.