Rain Bird - Sub-Surface XFS0918500 Dripline with Copper Shield Technology - 0.9 GPH, 18" Spacing, 500 ft. Coil NPT the first is for 1/4

the first is for 1/4 inch tubing and the other is for 1/2 to 3/4 inch tubing

rotating streams uniformly distribute water throughout the radius range

Internet-based weather information is used to make daily adustments to the irrigation schedule

Seasonal adjust:  10% to 200%

Rain Bird - Sub-Surface XFS0918500 Dripline with Copper Shield Technology - 0.9 GPH, 18" Spacing, 500 ft. Coil NPT the first is for 1/4Rain Birds copper colored XFS Dripline with Copper Shield for sub surface drip irrigation is the latest innovation in the Rain Bird Xerigation Family. Rain Birds patent pending Copper Shield Technology protects the emitter from root intrusion, creating a long lasting, low maintenance sub surface drip irrigation system for use under turf grass or shrub and groundcover areas. Having the copper color outside ensures the copper chip is inside and that