For water-efficient drip irrigation, choose the Netafim Drip Emitter. This emitter is color-coded and has a self-cleaning mechanism, reducing the chances of blockage that would otherwise be caused by sediment. It has an anti-siphon operation, which prevents the suction of particles and eliminates the need for an air or vacuum relief valve. It has a check valve to protect against root intrusion by ensuring water flows in a single direction. This emitter is used for wide-spaced plantings, tree planting, hanging baskets, and other applications. It is suitable to use with techline HCVXR, CV driplines, and 0.160 inch x 0.220 inch micro-tubing.