Apollo backflow valves and backflow preventers are manufactured by Conbraco Industies, going on nine decades now, and they are the leading manufacturer of American Made flow control products in the United States.  Their products include ball valves, butterfly valves, backflow prevention devices, water-pressure reducing valves, mixing valves, safety relief valves, water gauges, strainers, vacuum breakers,

A reduced pressure backflow preventer, also known as a reduced pressure zone device or a rpz device, is a backfow preventer which, as its name suggests, protects you from your water supply being contaminated by backflow.  There are several types of reduced pressure backflow preventers including a reduced pressure back flow valve, a double check

The ¾ Backflow Preventer is a backflow prevention device used to protect water supplies from dangerous contamination due to back flow.  Most major backflow device manufacturers make these backflow preventers in varying sizes, from the ¾ backflow preventer to the 2 inch backflow preventer, depending on the system currently being used on your water system.