These .5 GPH Pressure Compensating Drippers slowly deliver a constant drip of water to your plant's root zone. Use these Drippers with the 1/4" Vinyl or insert them directly into the 1/2" Poly Tubing. It is recommended that you use a Filter and 25 PSI Pressure Regulator with this drip irrigation product. (4 Drippers / 4 Couplers Per Bag) |