Skip to content
Front view of Hunter RZWS1825CV 18-inch Root Zone Watering System showing green cylinder, locking grate, and factory 0.25 GPM bubbler installed.

Hunter RZWS Root Zone Watering System — 18" (0.25 GPM) Check Valve

Brand: Hunter
Save 28%
$77.45
$56.15
SKU RZWS1825CV
In Stock (16)

Notify me when back in stock

Designed for efficient subsurface irrigation of trees and shrubs, the Hunter RZWS Root Zone Watering System delivers water and oxygen throughout the root zone to encourage deep, resilient root growth. The pre-assembled 18" cylinder uses Hunter’s patented StrataRoot™ baffle system to direct water and nutrients while adding structural rigidity and vandal-resistant protection.

  • Patented StrataRoot™ internal baffles distribute water and oxygen to multiple root-zone levels for healthier establishment.
  • Factory-installed 0.25 GPM pressure-compensating bubbler ensures consistent flow across recommended pressures.
  • Includes Hunter HCV check valve and durable locking cap to prevent backflow and vandalism.
  • Built-in ½" swing joint lets you connect directly to ½" PVC for fast, secure installation.
  • Recommended operating pressure 15–70 PSI (100–480 kPa); backed by a 2-year Hunter warranty.

The RZWS ships pre-assembled for fast installation and minimal on-site assembly. Available documentation includes an installation card, brochure, product overview, and cutsheet for specification, CAD, and maintenance details. Ideal for landscape professionals and irrigation contractors specifying reliable, low-maintenance root-zone irrigation.

Reviews

Frequently Asked Questions

What flow rate and size is this RZWS model?
This SKU is an 18" RZWS delivering 0.25 GPM. It ships pre-assembled with a factory-installed pressure-compensating bubbler and check valve.
What operating pressure range does the unit require?
Recommended operating pressure is 15–70 PSI (100–480 kPa). Use a regulator if system pressure falls outside this range.
Does this unit include a check valve and how is it connected?
Yes. The RZWS1825CV includes a factory-installed Hunter HCV check valve and a built-in ½" swing joint for direct connection to ½" PVC.