$0.62
Irritec Perma-Loc hose fittings are a reliable and versatile way to connect to poly tubing. Based on a spin-lock design they provide easy installation, a reliable grip, and can be removed and reused if needed.
Use the 1/2" Perma-Loc x 1/2 MPT to connect 1/2" poly lateral or 18 mm dripline to a female pipe thread. Tubing ID can range from .590" to .630".