Drip Tape Loc fittings twist onto drip tape and are reusable. Use this 5/8" Drip tape x Barb fitting on your lateral mainline poly tubing. Put your tape over the larger barb and tighten the nut down over the tape, then punch a hole into your mainline to insert the smaller barbed end of the fitting in to the main line.
We recommend using our #474 Simple Punch Tool
as the barb is bascially a .250 which is slighty larger that the 1/4" connectors.