Attaches 1/4" tubing to .5" poly tubing. One end of the coupler inserts into the opening of the 1/4" poly tubing & the other end of the coupler pokes through the wall of the .5" poly tubing.
We used this part to connect 1/4" tubing "runners" from 1/2" poly to the plants. These were very easy to use, especially with the Punch N Cut tool (IRH650). We had no issues with leaking, either.Review by Katie (on 12/19/12)