Rain Bird XFDE912250 250' Brown XFDe Dripline 0.9 GPH Flow Rate 12" Spacing. Utilizing a revolutionary new emitter technology developed by Rain Bird engineers, XFDe dripline is designed to exceed you expectations. The new low-profile pressure compensating emitter reduces friction loss within the tube enabling extra-long maximum lateral run lengths. In fact, XFDe dripline laterals can be installed up to 50% longer than competitor products. Longer dripline laterals means larger zones and lower material and installation costs. XFDe dripline is even more flexible and kink resistant allowing for an easy and quick installation even on the coldest days.