Which of the following is an example of a valve accessory?

• A. Flow Sensor
• B. Sprinkler Head
• C. Pressure Gauge
• D. Valves Boxes

Answer: (D)

When thinking about what counts as a valve accessory, focus on items that support or protect the valve installation rather than perform the system’s watering functions. A valve box fits this role perfectly: it’s a protective enclosure that houses the valve and its wiring, keeps the assembly safe from dirt and damage, and provides easy access for service and maintenance. This makes it a true valve accessory.

The other options serve different purposes in an irrigation system. A flow sensor measures how much water is moving through the line, a sprinkler head is the device that emits water to the landscape, and a pressure gauge is a separate instrument used to monitor pressure. None of these are primarily about supporting or protecting the valve itself, so they aren’t valve accessories.