Features: The upgrade manual pressure testing pumps combines cast iron construction with a manual drive systems, offering reliabled leak detection for water pipes, tap water systems, and underfloor heating without requiring external power sources. Featuring precise pressure adjustment and a compact, portable design, this pressure pumps ensures accurate identification of pipeline vulnerabilities while remaining easy to transport between job sites. Designed for DIYer enthusiasts and professional technicians, this tool meets the demands of both household maintenance crews and construction teams working in electricity limited environments. Optimize plumbing inspections in residential bathrooms, underground heating installations, or commercial water supply systems with this multi functional detector that adapts to various pipe diameters and materials. Its corrosions resistant cast iron body withstands repeated high pressure testing cycles, making it a long term solution for verifying pipe integrity in humid basements, outdoor construction zones, and complex underfloor heating networks. Specifications: Component: cast iron Properties: Manual drive Size: Approx.30x18x10cm/11.81x7.08x3.93inch Package Includes: 1 Set Manual Pressure Testing pumps note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.