Raindrip PC4025B 25-Count 1 GPH Drippers Drippers maintain their rated flow rate for 10-60 psi inlet pressure Can be used at the end of 1/4 in tubing feeders or can be inserted directly into 1/2 in Raindrip hose Ideal for medium soil (loam) Drippers For landscape and container plants Maintains a constant flow rate even on hillsides or long circuits Ideal for medium soil and loam Black base Drippers For landscape and container plants Maintains a constant flow rate even on hillsides or long circuits Ideal for medium soil and loam Black base