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PHA City Guard Replacement Pack (for Blue Housings)

Price range: $187.00 through $814.00

Replacement Filter Pack — PHA City Guard Whole-Home System (Blue Housing)

Complete replacement set for PHA City Guard systems installed with the blue 20″ filter housings. Compatible with both city and well configurations.

What’s Included
  • Stage 1 — Sediment Filter: Captures rust, sand, silt & particulates.
    Replace every 6–12 months, or as needed.
  • Stage 2 — Submicron Filter: Broad-spectrum contaminant reduction for chlorine, heavy metals, VOCs, and emerging contaminants.
    Replace annually.
  • Stage 3 — Choose One:
    • Mineralizer: Reintroduces beneficial minerals.
      Replace annually.
    • LSX Filter: Long-life scale control media.
      Replace every 3–5 years.
If Your System Has a 4th Stage

Some older or customized systems include an additional stage. If you’re unsure:

Email: support@greenfieldwater.com or use chat — we’ll identify the correct filter.

Replacement Notes

Filter order may vary by install. We recommend noting the current filter positions before removing them and installing replacements in the same configuration.

Extra sediment filters available:

Sediment Filters

Installation Guide
Filter Replacement Instructions (PDF)

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Additional information

Weight23 lbs
Dimensions24 × 18 × 6 in
STAGES 1 & 2

SED FILTER/CARBONBLOCK, SED FILTER/EPF FILTER

ADD MINERALIZER

YES, NO

ADD LSX (EVERY 3-5 YRS)

YES, NO

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