Orbit Professional Series 4" pop-up spray head designed for residential and commercial landscape irrigation. Pre-installed pressure regulator delivers consistent nozzle output regardless of supply-pressure fluctuations, preventing misting and improving distribution uniformity across the zone.

• Half pattern (180-degree) fixed nozzle
• Spray radius 10 to 15 ft
• 4" pop-up height with 1/2" FPT (female pipe thread) inlet
• Pressure regulator factory-set to 30 PSI, adjustable to 40 PSI (70 PSI max operating pressure)
• Corrosion-resistant stainless steel riser spring
• Ratcheting riser stem allows fine-tuning of spray direction after installation
• Dual radial and face seals on cap plus over-molded wiper seal for reliable retraction
• Gravity-activated silt trap in the bottom of the body helps prevent nozzle clogging
• Black finish
• Manufacturer part: 80345

Tip: Match nozzle patterns within a single irrigation zone so all heads deliver a similar precipitation rate per square foot. Mixing Full, Half, Quarter, and Center Strip patterns on the same zone causes uneven coverage and over-watering in the shorter-arc segments.