Legacy Undersink Replacement Filter Pack (older systems)

Please use the dropdown menus above to select:

• Housing Type: Stainless Steel Housings, White Housings, or Clear Housings
• System Type: Standard or Includes Inline Mineral Cartridge

Select the housing type that matches what you see under your sink. Different housing styles require different replacement filter configurations.

This replacement pack is designed for earlier Greenfield Water Solutions undersink systems that use:

• Stainless steel filter housings
• White filter housings
• Clear filter housings

If you’re unsure which housing type you have, please contact us before ordering and we’ll be happy to help identify the correct replacement pack.

Your replacement pack will include the correct filters for the housing type and system configuration selected above.

• Standard Pack:
  1 advanced nanofiber filtration cartridge for bacteria, viruses, cysts, and ultrafine particles, plus 2 premium carbon block filters for chlorine, taste, odor, and additional contaminant reduction.
• Includes Mineral Cartridge:
  1 advanced nanofiber filtration cartridge, 2 premium carbon block filters, plus an inline mineral cartridge.

The replacement filters included in these packs utilize advanced filtration technologies selected for high performance, strong flow, and reliable contaminant reduction.

The nanofiber filtration stage uses electropositive filtration technology to capture bacteria, viruses, cysts, and extremely fine particles while maintaining high flow and low pressure drop. The carbon block stages use high-quality activated carbon to reduce chlorine and improve taste and odor.

View Nanofiber Filter Performance Data

View Carbon Block Filter Performance Data

Replace filters every 6–12 months, depending on:

• Water quality
• Usage volume
• Sediment levels in your area

Replacement Guide (PDF)

Sanitization Guide (PDF)

Installation is straightforward with basic household tools. If you’re unsure which housing type you have, our team is happy to help.