This PVC riser from Orbit measures � inch by 24 inches and is constructed of high-quality molded material that guarantees many years of dependable garden watering performance. This sprinkler nipple increases the height of water sprinkler heads to dispense water where you need it. Perfect for an Orbit watering system or a do-it-yourself sprinkler system, this PVC nipple connects in ground sprinkler system pipes to yard sprinkler heads. This sprinkler system riser is an excellent piece that will make your lawn watering system work more effectively for many years. Features and Benefits: Increases the height of your garden sprinkler head for more optimal watering, Molded PVC construction is high-quality, 24 inches in length, Attaches below-ground irrigation pipes to lawn sprinkler heads.