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What Is a Flag Drip Emitter?

A flag drip emitter, or flag dripper, is a drip irrigation component used to deliver water directly to the base of your plants. Flag emitters release water in a highly controlled manner, minimizing evaporation and runoff. These emitters have varying flow rates, often measured in gallons per hour (GPH). Their color-coded flags often indicate the flow rate of the device. Flag drip emitters are ideal for landscaping, gardens, trees, and shrubs where targeted watering is needed.

Flag Drip Emitter FAQs

Why are they called “flag” emitters?

They’re called flag emitters because of the distinctive flag-shaped tab on the top of the emitter. This tab serves two main purposes. First off, the flag is often color-coded to indicate the emitter’s flow rate. Secondly, the flag can be twisted or pulled off to open the emitter for cleaning.

What are flag emitters used for?

Flag emitters are used in drip irrigation systems to deliver water directly to the base of plants in a slow, controlled manner. They're ideal for gardens, landscapes, trees, and shrubs where precise watering is needed. They're especially useful in water-conscious or drought-prone areas.

Are flag emitters pressure-compensating?

Most flag emitters are not pressure-compensating, meaning their flow rate can vary depending on the water pressure in the system. They are designed for simplicity and ease of cleaning, not for maintaining a constant flow rate across different pressures. If you need consistent output on uneven terrain or in longer drip lines, a pressure-compensating emitter would be a better choice.