Rain Bird SQ-QTR square pattern spray nozzle - quarter pattern 90° - two throw distances of 0.8 and 1.2 m

Rain Bird SQ-QTR for small planting bed corners

The Rain Bird SQ-QTR is a pressure-compensating spray nozzle featuring a square quarter pattern for precise irrigation of small planting areas. It is particularly suitable for planting bed corners, narrow landscaped strips, small green spaces and planted areas alongside paths or patios. Unlike conventional quarter-circle spray nozzles, the SQ-QTR produces a square coverage pattern with straight outer edges rather than a curved spray boundary.

This allows water to be directed more accurately onto square or rectangular planting areas. The nozzle is installed at a corner of the area to be irrigated, distributing water along two perpendicular sides. This makes it easier to plan automatic irrigation where overspray onto adjacent paths or paved surfaces should be minimised.

Two selectable throw distances of 0.8 and 1.2 m

The Rain Bird SQ-QTR combines two preset throw distances in a single nozzle. By rotating the nozzle to the next indexed position, you can switch between a short throw of 0.8 m and a longer throw of 1.2 m. At these nominal distances, the nozzle produces square coverage areas of approximately 0.8 x 0.8 m or 1.2 x 1.2 m.

The actual throw depends on operating pressure. At higher pressures, Rain Bird specifies distances of approximately 0.9 or 1.4 m. Switching between the two settings is performed mechanically at the nozzle itself. No separate adjustment screw is needed for continuous throw adjustment, making it easy to adapt the nozzle to differently sized planting areas.

Pressure-compensating micro irrigation

The SQ-QTR belongs to the Rain Bird SQ Series, developed for precise, low-volume irrigation of small areas. Its integrated pressure compensation maintains a relatively consistent flow rate across the specified operating pressure range. The square spray pattern provides targeted coverage towards the boundaries of planting areas. When properly planned, this edge-to-edge coverage can reduce the number of nozzles required.

The operating pressure range is 1.4 to 3.5 bar. Depending on pressure, the quarter-pattern nozzle uses approximately 24 to 28 litres of water per hour. This low flow rate makes it particularly suitable for flower beds, perennials, groundcover and smaller planted garden sections. When planning your irrigation system, remember that both throw settings deliver approximately the same flow rate at the same pressure.

Flexible installation and easy maintenance

The Rain Bird SQ-QTR can be installed on various compatible Rain Bird spray bodies and adapters. These include 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 filter screen is supplied to help prevent debris from clogging the nozzle openings. Rain Bird specifies a minimum filtration requirement of 40 mesh. For different coverage requirements, the SQ Series also includes other spray patterns, such as the SQ-HLF for half-square areas and the SQ-FUL for complete square coverage.

Technical specifications and dimensions

• Manufacturer: Rain Bird
• Model: SQ-QTR / SQQTR
• Series: Rain Bird SQ
• Product type: Pressure-compensating spray nozzle
• Spray pattern: Square quarter pattern
• Coverage angle: 90°
• Installation position: Corner of a square or rectangular planting area
• Nominal throw distances: 0.8 and 1.2 m
• Throw at higher pressure: Up to approximately 0.9 and 1.4 m
• Nominal coverage areas: 0.8 x 0.8 m or 1.2 x 1.2 m
• Throw adjustment: Two indexed mechanical settings
• Operating pressure: 1.4 to 3.5 bar
• Flow rate: Approximately 24 to 28 l/h
• Pressure compensation: Yes
• Filter screen: Blue, 0.5 x 0.5 mm
• Required filtration: 40 mesh
• Material: UV-resistant plastic
• Compatibility: Rain Bird 1800 Series, UNI-Spray, Xeri-Pop and suitable riser adapters
• Applications: Small planting beds, bed corners, groundcover and narrow landscaped areas

Frequently asked questions about the Rain Bird SQ-QTR

What area does the SQ-QTR cover?

The SQ-QTR produces a square quarter spray pattern. At its nominal throw settings, it covers approximately 0.8 x 0.8 m or 1.2 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 shorter and longer throw settings.

Where should the SQ-QTR be installed?

The quarter-pattern nozzle should be installed at a corner of the planting area. It distributes water over a square section extending along two perpendicular sides.

How much water does the SQ-QTR use?

Depending on operating pressure, water consumption is approximately 24 to 28 litres per hour. Integrated pressure compensation maintains a relatively stable flow rate across the specified pressure range.

How does the SQ-QTR differ from a conventional 90° spray nozzle?

A conventional 90° nozzle produces a quarter-circle spray pattern. The SQ-QTR produces a square pattern with straight outer edges, making it especially suitable for small rectangular planting areas.

Which Rain Bird spray bodies are compatible?

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

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

Yes. The SQ Series offers coordinated quarter, half and full square patterns. When designing your irrigation system, account for the different flow rates and selected throw settings.