When should I use 4 GPH drip emitters?

4 GPH emitters suit plants whose water need and soil infiltration match that flow. Lower GPH helps clay and slopes; higher GPH serves large shrubs or sandy soils when runtime stays practical. Total all emitters on the zone and confirm the filter/regulator are rated for the flow.

Still stuck? Contact us with a photo of the part label — we confirm fit within one business day.