Rain Bird SQ-HLF square pattern spray nozzle - half pattern 180° - two throw distances of 0.8 and 1.2 m

Rain Bird SQ-HLF for narrow planting beds

The Rain Bird SQ-HLF is a pressure-compensating spray nozzle with a rectangular half-square pattern for precise irrigation of small and narrow planting areas. It is particularly suitable for flower beds, perennial borders, groundcover and landscaped areas alongside garden paths or patios. Unlike conventional 180° spray nozzles, the SQ-HLF does not produce a semicircular spray pattern. Instead, it creates rectangular coverage with straight outer edges.

The nozzle is installed at the midpoint of one side of the planting area. From this position, it distributes water to the left, right and forward across the planted section. This allows small rectangular beds to be irrigated from their boundary without positioning a sprinkler among the plants. The square-pattern design is particularly useful for clearly defined planting areas.

Two selectable throw distances of 0.8 and 1.2 m

The Rain Bird SQ-HLF combines two preset throw distances in a single nozzle. By rotating the nozzle to the next indexed position, you can switch between 0.8 and 1.2 m. The shorter setting produces a nominal rectangular coverage area of approximately 1.6 x 0.8 m. The longer setting provides coverage of approximately 2.4 x 1.2 m.

Actual throw depends on operating pressure and installation height. At higher pressures, Rain Bird specifies throw distances of approximately 0.9 or 1.4 m. Switching between the two settings is performed directly at the nozzle without additional tools. This allows you to adapt the SQ-HLF to different planting bed dimensions without replacing the nozzle.

Pressure compensation for consistent irrigation

The SQ-HLF belongs to the Rain Bird SQ Series, designed for precise low-volume irrigation of small planting areas. Integrated pressure compensation helps maintain controlled water flow across the specified operating pressure range. The rectangular spray pattern distributes water towards the boundaries of the planting area. With suitable system design, this edge-to-edge coverage can reduce the number of spray nozzles required.

The operating pressure range is 1.4 to 3.5 bar. According to Rain Bird's performance chart, the SQ-HLF uses approximately 39 litres per hour at 1.4 bar and 46 litres per hour at 2.1 bar. At higher pressures, consumption increases to approximately 52 litres per hour. Both throw settings deliver the same flow at a given pressure, so the different precipitation rates should be considered when designing an irrigation system.

Flexible installation on Rain Bird spray bodies

The Rain Bird SQ-HLF is compatible with several Rain Bird spray bodies and adapters, including the Rain Bird 1800 Series, UNI-Spray, Xeri-Pop and suitable PolyFlex riser adapters. This allows the nozzle to be installed close to ground level or raised above surrounding plants. Correct installation height helps prevent foliage and other obstacles from interfering with the spray pattern.

A blue fine-mesh filter screen is supplied to protect the nozzle openings from debris and support reliable operation. Rain Bird specifies a minimum filtration requirement of 40 mesh. For different planting area shapes, the SQ Series includes additional models such as the SQ-QTR for corner positions and the SQ-FUL for complete square coverage.

Technical specifications and dimensions

• Manufacturer: Rain Bird
• Model: SQ-HLF / SQHLF
• Manufacturer SKU listed in the US store: X54901
• Series: Rain Bird SQ
• Product type: Pressure-compensating spray nozzle
• Spray pattern: Rectangular half-square pattern
• Coverage angle: 180°
• Installation position: Midpoint of one side of the planting area
• Nominal throw distances: 0.8 and 1.2 m
• Nominal coverage at 0.8 m: 1.6 x 0.8 m
• Nominal coverage at 1.2 m: 2.4 x 1.2 m
• Throw at higher pressure: Up to approximately 0.9 and 1.4 m
• Throw adjustment: Two indexed mechanical settings
• Operating pressure: 1.4 to 3.5 bar
• Flow rate according to performance chart: 39 to 52 l/h
• Water consumption at 2.1 bar: 46 l/h
• Pressure compensation: Yes
• Filter screen: Blue, approximately 0.5 x 0.5 mm
• Required filtration: 40 mesh
• Material: UV-resistant ABS plastic
• Compatibility: Rain Bird 1800 Series, UNI-Spray, Xeri-Pop and suitable riser adapters
• Applications: Planting beds, perennials, groundcover and narrow landscaped areas

Frequently asked questions about the Rain Bird SQ-HLF

What area does the SQ-HLF cover?

The SQ-HLF produces a rectangular half-square spray pattern. At its nominal throw settings, it covers approximately 1.6 x 0.8 m or 2.4 x 1.2 m. Actual coverage depends on operating pressure.

How do I switch between the two throw distances?

Rotate the nozzle to the next indexed position to switch between the 0.8 and 1.2 m throw settings.

Where should the SQ-HLF be installed?

The nozzle should be installed at the midpoint of one side of a rectangular planting area. From this position, it distributes water to the left, right and forward.

How much water does the SQ-HLF use?

According to Rain Bird's performance chart, the flow rate ranges from approximately 39 to 52 litres per hour. At 2.1 bar, consumption is approximately 46 l/h.

How does the SQ-HLF differ from a conventional 180° spray nozzle?

A conventional 180° nozzle produces a semicircular spray pattern. The SQ-HLF creates rectangular coverage with straight outer edges, making it especially suitable for small rectangular planting beds.

Which Rain Bird spray bodies are compatible?

The SQ-HLF is compatible with Rain Bird 1800 Series spray bodies, UNI-Spray, Xeri-Pop and suitable riser adapters.

Can I combine SQ-HLF and SQ-QTR nozzles?

Yes. Both models belong to the Rain Bird SQ Series and offer coordinated spray patterns. Consider the different flow rates and selected throw settings when designing your irrigation system.