Digital Backflow Prevention Test Kit wall mixers 75 mm
- 50mm connection

75 mm<br> - 50mm connection = 55

suitable to test pressure in sewage

Non toxic PVC hose with I

20mm flange

Digital Backflow Prevention Test Kit wall mixers 75 mm<br> - 50mm connectionGould Instruments Digital Backflow Test Kit Precision Testing Made Easy Test smarter, not harder. The Gould Instruments Digital Backflow Test Kit is designed for plumbers, testers, and water authorities who demand accuracy, reliability, and compliance. Whether you're certifying RPZs, testing double check valves, or conducting routine inspections, this all in one digital kit helps you get the job done faster, cleaner, and with complete confidence.