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Front view of Hunter RZWS1850CV 18-inch Root Zone Watering System showing locking cap, coarse grate, and factory-installed 0.50 GPM bubbler for root-zone irrigation.

Hunter RZWS1850CV 18" Root Zone Watering System, 0.50 GPM

Brand: Hunter
Save 28%
$77.45
$56.15
SKU RZWS1850CV
In Stock (17)

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Hunter RZWS1850CV 18" Root Zone Watering System provides targeted, enclosed irrigation that encourages deep root growth for young trees and shrubs. The unit delivers precise water to the root zone while protecting irrigation components from surface damage and vandalism.

  • Patented StrataRoot™ baffles direct water, air and nutrients evenly through the root zone while adding structural rigidity to the cylinder.
  • Factory-installed 0.50 GPM (1.9 L/min) pressure-compensating bubbler ensures consistent flow across typical landscape pressures.
  • Built-in HCV check valve and 1/2" swing joint allow direct connection to 1/2" PVC and prevent low-point drainage or reverse flow.
  • Durable enclosed plastic cylinder, locking cap and coarse grate protect internal components and deter tampering on public or commercial sites.
  • Pre-assembled for fast installation—saves labor time on new plantings and retrofits and ships ready to install.
  • Compact profile (18" / 45 cm) with a serviceable top; compatible with common landscape plumbing and easy to integrate into tree-planting details.

Install the RZWS at the root-ball depth so the StrataRoot baffles distribute water through the root zone. Use conventional 1/2" PVC fittings or a 1/2" adapter to connect the swing joint; secure the unit and locking cap after flushing the line. Periodic visual checks and occasional flushing of the bubbler keep flow reliable. The RZWS1850CV is specified for professionals who need a vandal-resistant, reliable method to deliver water and oxygen to establish vegetation.

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Frequently Asked Questions

What are the dimensions and flow rate of this RZWS model?
The RZWS1850CV is 18 inches (45 cm) tall and includes a factory 0.50 GPM (1.9 L/min) pressure-compensating bubbler for consistent delivery.
How is the Hunter RZWS1850CV installed?
It ships pre-assembled with a built-in 1/2" swing joint for direct connection to 1/2" PVC. Set at root depth, connect plumbing, flush line and secure the locking cap.
Does the unit include a check valve to prevent backflow?
Yes. The RZWS1850CV includes a factory-installed HCV check valve to protect the emitter from reverse flow and prevent low-point drainage.
What plants and situations is this product best for?
Designed for young trees and shrubs, the RZWS delivers water and oxygen throughout the root zone to encourage deep, stable root systems for establishment.