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The RAIN BIRD 18AP is an adjustable pattern spray nozzle designed for residential and light commercial irrigation systems. It covers a spray radius of 18 feet and allows the installer to dial in any pattern from 0 degrees to 330 degrees, making it adaptable to odd-shaped turf and planting areas without swapping nozzles. The matched flow rate design distributes water evenly across the arc regardless of the pattern selected. A stainless steel adjustment screw provides durable, repeatable settings, and a filter screen is included to protect the nozzle orifice from debris.
This nozzle is suited for lawn and landscape irrigation zones where spray heads are already installed. It fits a wide variety of pop-up and fixed spray head bodies, making it a practical replacement or upgrade during routine service calls. The matched flow rate design is compatible with other Rain Bird matched flow rate nozzles, so zones can be balanced without recalculating precipitation rates when mixing radii or patterns on the same valve zone.
Compatible with a wide variety of Rain Bird and standard spray heads. Also compatible with other Rain Bird matched flow rate nozzles for mixed-radius zone balancing. Designed as an OEM-style replacement nozzle for residential and light commercial spray irrigation systems.
Irrigation technicians should shut off the zone valve and relieve system pressure before removing or installing spray nozzles. Use the stainless steel adjustment screw to set the desired arc after installation and before final system test. Follow local irrigation and water authority codes regarding matched precipitation rates and head spacing. Flush the lateral line before installing new nozzles to clear debris that could clog the filter screen.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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