I used a drip fitting that I could get at Lowe's. Don't remember the brand name off the top of my head, but basically one side of the fitting attatched to the drip tubing for that manufacturer, and had 1/2" pipe threads on the other. Specifically what I did was to transition form PVC to copper in my lateral lines while still underground. I then came above ground with the copper with an immediate elbow and copper female. That way, I had a rugged point to connect the drip to. Worst case, lawn mowers or weed eaters or animals trash the drip stuff, but I've always got that copper terminator to start from (unless it gets run over by a truck).