Rainbird Single Outlet Barb Pressure Compensating Module, Orange, 24 GPH Pressure-Compensating Module - Barb Inlet, 24.0 GPH, Orange Most compact and unobtrusive emitters Pressure-compensating design delivers uniform flow throughout a wide pressure range (10 to 50 psi; 0.7 to 3.5 bar) Self-piercing barbs for quick one-step emitter insertion into 1/2 in. or 3/4 in. drip tubing Robust design; durable plastic construction is UV-resistant and color-coded to identify flow rate