|The items in this category are complete Double Check backflow assemblies -- ready for installation -- ranging in size from 1/2" to 10" from Ames, Apollo/Conbraco, Febco, Flomatic, Watts, or Wilkins.
Doublecheck assemblies are designed to provide protection from both back-pressure and back-siphonage, but are not approved for installation in high-hazard environments.
Smaller devices (1/2" to 3" pipe diameter) are typically configured with ball valves, but may be ordered with OSY or butterfly indicator valves for fire line applications.
If you need assemblies with special characteristics (NFPA-approved valving, flange x groove, etc.) or have special shipping requirements, or are not quite sure what you need to order, please call us at 303-980-8217.