Use these couplers to extend water feeds off 1/4″ poly tubing for emitters and sprayers in beds, containers and planters. The elbow fitting allows designing with 90 degree angles directly into the side of 1/2″ poly tubing or with both ends accommodating 1/4″ poly. Avoid using several emitters along the same line of tubing as water flow at the end of each emitter will be reduced below stated output. Using separate branches off 1/2″ poly to emitters is more consistent.