Rain Bird Sure Pop SP40CST | A18123 = Rain Bird 1804 + CST Nozzle

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1804LN - 4 in. (10 cm) Pop-Up Spray Head - Center Strip Pattern Nozzle
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Installed in parks and backyards across the globe, Rain Bird's 1800 Series is the #1 commercial-grade irrigation spray head brand in the world.

Chosen for its reliability, heavy-duty materials and versatility, the 1800 Series offers a broad selection of pop up heights and nozzle combinations for watering shrubs, small lawns and irregularly shaped planting areas. Precision spray heads and nozzles customize your watering system to cover virtually any configuration lawn or garden - not the sidewalk or driveway!

The 1800 Series offers Rain Bird's patented pop-up mechanism for out-of-sight retraction into the lawn when not in operation, full and partial circle coverage and infinite pattern adjustment for optimum head-to-head coverage.


  • 4 in. 1800 Series pop-up spray head with center strip pattern nozzle.
  • Patented pressure-activated co-molded wiper seal prevents wasteful water leakage and assures long life.
  • Heavy-duty stainless steel spring assures flush retraction, every time.
  • Directional adjustment feature lets you aim the spray pattern by hand.
  • Simple, top adjustment screw decreases spray distance.
  • U.V. resistant plastic reduces fading.
  • Operates efficiently at low water pressure.


  • Radius: 4' to 30’ (1.22 to 9.14 m)
  • Pressure 15-70 psi (1.0 to 4.8 Bar)
  • Flow-by: 0 at 8 psi (0.6 bar) or greater.


  • 1/2" FNPT bottom inlet


  • 1804: 6" (15,2 cm) body height; 4" pop-up height (10,2 cm)
  • Exposed surface diameter: 2 1/4" (5,7 cm)

Five-year trade warranty.

Spray Sprinkler Installation


How to Adjust the Throw Distance


How to Adjust the Throw Pattern


Rain Bird 1800 PRS Spray Heads