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Rain Bird RD04SP45FNP RD1800 4" pop-up spray head, PRS 45 psi, SAM check valve, Flow‑Shield, 1/2" female inlet, purple non-potable cap

Rain Bird RD04SP45FNP RD1800 4" Pop-Up Spray Head, PRS 45

Brand: Rain Bird
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$30.51
$15.75
SKU RD04SP45FNP

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Built for harsh conditions, the Rain Bird RD04SP45FNP is a 4" RD1800-series pop-up spray body engineered for reliable, long-term performance in commercial and reclaimed-water applications. It combines pressure regulation, a SAM check valve, and Flow‑Shield diagnostics to keep systems running clean and efficient.

  • Pressure regulation (PRS 45): Maintains consistent nozzle pressure at 45 PSI for uniform coverage and improved nozzle performance.
  • SAM Seal‑A‑Matic check valve: Holds up to 14' of head to prevent low‑head drainage, erosion and water hammer at start‑up.
  • Flow‑Shield™ technology: Visual diagnostic ring simplifies troubleshooting and helps identify leaks or misaligned spray nozzles quickly.
  • Reclaimed water resistant: Constructed with materials (EPDM and polyester components) that resist degradation from reclaimed/non‑potable water.
  • Rugged dimensions: 4" pop‑up height, 6" body height, 2‑1/4" exposed diameter; 1/2" female threaded inlet.
  • Nozzle compatibility: Accepts standard Rain Bird female nozzles (VAN, U‑Series, MPR); no nozzle is included (flush plug only).
  • Durability features: Triple‑blade wiper seal and debris pockets reduce clogging and extend service life in dirty or high‑sediment environments.

Ideal for commercial landscapes, parks, and systems using reclaimed water, the RD04SP45FNP delivers dependable operation where durability matters. Follow Rain Bird installation guidelines and use compatible female-thread nozzles for best results; the product carries Rain Bird's five‑year trade warranty for added peace of mind.

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Frequently Asked Questions

What nozzles are compatible with this spray body?
Compatible with standard Rain Bird female-thread nozzles such as VAN, U‑Series and MPR. No nozzle is included.
Can this model be used with reclaimed or non-potable water?
Yes. The non‑potable RD04SP45FNP uses reclaimed-water resistant materials (EPDM and polyester) and a purple cap for identification.
How does the SAM check valve protect my irrigation system?
The SAM check valve holds back up to 14' of head to prevent low‑head drainage, reduce erosion and limit water hammer at start‑up.
Is the sprinkler pressure regulated to 45 PSI?
Yes. The PRS45 regulator maintains approximately 45 PSI at the nozzle for consistent spray performance across varying inlet pressures.