Compact High Purity Reverse Osmosis Replacement Filter Cartridges

Replacement Filter Set for Compact RO Systems 

Maintain the performance and purity of your compact RO system with the official Compact High Purity Reverse Osmosis Replacement Filter Cartridges. This complete replacement set includes everything you need to keep your water clean, fresh, and mineral-rich — ideal for home or office use.

Designed for systems with left-hand membrane placement, this 4-stage filter setup uses high-quality Omnipure cartridges to remove chlorine, chemicals, heavy metals, and more, while enhancing taste and raising pH.

Filter Breakdown & Replacement Schedule:

• Stage 1 – Omnipure Carbon Filter WL5540 (5 Micron) 10"
  This filter is replaced with the used Stage 3 from the previous cycle.
  🔁 Old Stage 3 becomes the new Stage 1

• Stage 2 – RO Membrane Filter WL5572 75GPD (Left Hand) (0.0005 Micron) 10"
  Removes fluoride, lead, PFAS, heavy metals, bacteria, and more.
  ✅ Replace every 5 years

• Stage 3 – Omnipure Carbon Filter WL5540 (5 Micron) 10"
  Receives the new carbon filter previously intended for Stage 1.
  ✅ New filter goes here every 12 months

• Stage 4 – Omnipure Alkaliser-Remineraliser Filter WL5550 (Left Hand) 10"
  Raises pH, adds healthy minerals, and improves taste.
  ✅ Replace every 12 months

This Compact High Purity Reverse Osmosis Replacement Filter Cartridge set keeps your system operating efficiently, delivering safe, great-tasting water straight from your tap.