Toro T-DPCT08-4-RED-S NGE Red Emitter 2.1 GPH with 1/4" Barb Outlet - Designed for demanding drip irrigation installations, the Toro® New Generation Emitter (NGE) has what it takes to keep your system flowing. The unique emitter design and pressure compensating diaphragm allows the emitter to self-flush during operation and shut-down to facilitate cleaning. This ensures the emitter is free of debris at start-up and during the emitter operation.