Test Gauge® and Backflow Supply provides backflow technicians with a vast array of repair parts for all manufacturers assemblies. Our company currently distributes backflow repair parts and whole valves to about 4500 customers throughout the USA. With a full inventory we are ready to ship your order today, our current orders ship within 24 hours 99% of the time. From parts to tools and accessories we are known as the best backflow parts supplier in the industry.