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Top view of black PC Diffuser Cap (PC-DIFFUSER) showing diffuser openings and UV-resistant polyethylene construction for outdoor irrigation.

Rain Bird PC Diffuser Cap — UV-Resistant Pressure-Compensating Bubbler

Brand: Rain Bird
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$0.67
$0.25
SKU PCDIFFUSER

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Rain Bird PC Diffuser Cap (PC-DIFFUSER) snaps onto pressure-compensating (PC) modules and XB emitter outlets to create a controlled bubbler and prevent washout from high-flow emitters. Made from UV-resistant polyethylene, the cap simplifies installation and protects the emission point for clean, targeted watering.

  • Snaps securely onto PC modules and XB emitter outlets to create a bubbler effect and prevent washout.
  • Manufactured from UV-resistant polyethylene for long-term outdoor durability.
  • Tool-free, finger-friendly installation—press on for quick placement and easy removal for maintenance.
  • Available in black (PC-DIFFUSER) and purple (PC-DIFF-PPL) to identify non-potable or reclaimed water lines.
  • Ideal when a PC Module is used as the final point of emission to eliminate squirting and deliver water precisely to the root zone.
  • Compact, low-profile design minimizes visual impact while directing water to the plant area for efficient irrigation.

Designed for use with Rain Bird PC Modules and XB emitters, the diffuser cap reduces splash and erosion at emission points while preserving the module's pressure-compensating performance. Refer to your PC Module's specifications for flow, pressure, and filtration requirements, and choose the purple model for reclaimed water installations.

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Frequently Asked Questions

What does the PC Diffuser Cap do and when should I use it?
Snaps onto PC modules or XB outlets to create a bubbler, prevent washout, and avoid squirting when modules are end emitters.
How do I install the diffuser cap?
Press the cap onto the PC Module or XB outlet; the finger-friendly design allows tool-free installation and easy removal.
Is there a reclaimed-water option available?
Yes. Rain Bird offers a purple model (PC-DIFF-PPL) specifically to identify non-potable or reclaimed water lines.