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SQ Series

Square Pattern Nozzles (formerly known as XPCN)

The SQ Series is the most precise and efficient, low-volume spray solution for irrigation of small areas with dense plantings. The SQ Series' square spray pattern and pressure compensation offers increased efficiency and control, reducing overspray, property damage and liability.

Unique edge-to-edge capability reduces the number of nozzles needed, which decreases cost and dramatically reduces installation time. Simplify design and installation with the flexibility of applications: one nozzle throws 2.5' or 4' (0.8m or 1.2 m) and can be used on a variety of spray heads and risers. It even meets micro irrigation system requirement for less than 26 gph flow rate at 30 psi.

SQ Series nozzles provide up to 65% water savings, and are great for narrow planting beds, parking lot islands, walkways, parkways, and street medians

  • Square spray pattern with edge-to-edge coverage allows you to easily design and install in small spaces.
  • Pressure compensation design delivers uniform flow over the pressure range.
  • Available in 3 models: quarter, half, and full patterns with matched precipitation rate.
  • Virtual no-mist performance from 20 psi to 50 psi.
  • Two throw distances in each nozzle. One simple click adjust to 2.5' or 4' (0.8 m or 1.2 m)
  • Shipped with blue filter screen (0.02" x 0.02") to maintain precise distance of flow, and to prevent clogging.
  • Compatible with all 1800 Sprays, Xeri-Pops, PolyFlex Riser Adapter, UNI-Spray, and SCH 80 risers.
  • Three-year trade warranty.

With a simple turn of the nozzle to the next preset stop, the Rain Bird SQ Nozzle adjusts from a 2.5' (0.8 m) throw to a 4' (1.2 m) throw. It’s like having two nozzles in one.

The SQ Nozzle is an ideal solution for a wide range of difficult-to-design areas, thanks to its compatibility with popular irrigation products.

SQ Series Nozzles provide a precise square wetting pattern and efficient water placement with pressure compensation – resulting in up to 65% water savings. They are great for narrow planting beds, parking lot islands, walkways, parkways, and street medians.


SQ Nozzle, quarter pattern

SQ Nozzle, half pattern

SQ Nozzle, full pattern

SQ Nozzle Adapter with
12" PolyFlex Riser


SQ Nozzle Adapter with
24" PolyFlex Riser

SQ PolyFlex Riser
Adapter only

(2) full, (4) quarter,
and (4) half pattern SQ Nozzles

Note: A PA-8S Plastic Shrub Adapter is needed when using an SQ Series Nozzle mounted on a SCH 80 riser.

Operating Range

  • Pressure: 20 to 50 psi (1.4 to 3.5 bar)
  • Flow rates: 6, 12 and 24 gph (22.7, 45.4 and 90.8 l/h)
  • Required filtration: 40 mesh

Seeing is believing!

Let’s take a look at the many ways you can use the SQ Nozzle and listen to some of our customers and their product solutions.

Carol Brinkman
Grounds Supervisor, San Antonio Community Hospital

"Overspray was a big problem for us. We had sidewalks and buildings that got soaked every time the system came on.

"Our solution was to change to Rain Bird’s SQ Nozzles. They were super easy to work with and we didn’t have to dig up or move anything. We just swapped out the nozzles.

"We were really impressed with the square pattern and the pressure compensation. These new nozzles totally eliminated our overspray problems. Wet sidewalks and walls are a thing of the past at the hospital. Best of all, every one of my nozzles performs exactly the same, from the beginning to the end of the run.

"It’s nice to know that we’re saving water, and I can always count on Rain Bird for a quality solution for our tough irrigation challenges.”


Phil Liso
Landscape Inspector, Public Works Department

“Over the years, several corners in the city of Lake Forest were redesigned to incorporate HOA monuments. They do a great job aesthetically, but created a nightmare for us in terms of irrigation! We were unable to add dedicated control zones to the design because of the location of these new decorative areas. To compound the problem, the rotors we were using were shredding the plant materials and would eventually destroy the signs altogether.

"Rain Bird had a great solution for us – the SQ Series Nozzle. These nozzles are a perfect fit for the size and shape of the new planting areas. And thanks to the nozzle’s pressure compensating feature, we were able to put them on the existing line, have low pressure watering for the delicate plants, and not affect the rotors’ performance in the slightest.

"It’s comforting to know that the SQ Nozzles aren’t tearing up my plant materials, detracting from my rotors’ performance, or causing problems with other plant material in the zone. These new nozzles are the perfect solution for me.”