1-4" and 1-8" poly tubing are used to branch off of 1-2" poly tubing to serve as a supply line to individual plants. Avoid using 1-4"and 1-8" poly tubing to feed several emitters along the same line of tubing, as water flow at the end of each emitter will be reduced below stated output; flows to each emitter when separately branching off 1-2" poly are more consistent.
Great tubing. It is heavy-duty and pliable. Good price for it too.Review by Stephanie (on 12/17/12)