F.SET.RO4 & F.SET.RO4-UV – Replacement Filter Sets for Under Sink EWS RO4 Reverse Osmosis Systems

Keep your reverse osmosis system performing like new with the official F.SET.RO4 and F.SET.RO4-UV replacement kits. Designed for the EWS RO4 and RO4-UV systems, these sets include all the necessary cartridges (and UV lamp if applicable) to restore water quality, taste, and safety. Replace filters annually or as needed for reliable performance.

What’s Included

F.SET.RO4 (Standard 4-Stage)

• Stage 1 – F.INLINE (5 Micron Pre-Sediment): Removes dirt, rust, and sediment to protect downstream filters.
• Stage 2 – F-GAC (Advanced Carbon): Reduces chlorine, chloramine, VOCs, THMs, PFAS, and improves taste and odor.
• Stage 3 – F-MEM (Reverse Osmosis Membrane): Removes fluoride, arsenic, nitrates, lead, heavy metals, and dissolved solids.
• Stage 4 – F-GAC-B (1 Micron Carbon Block): Final polishing filter that enhances taste, odor, and clarity.

F.SET.RO4-UV (With UV Protection)

• All filters included in the F.SET.RO4 kit, plus:
• Stage 5 – F-LAMP (UV Disinfection Lamp): Kills 99.99% of bacteria, viruses, and microorganisms for complete water protection.

Key Features & Benefits

• Complete filter replacement sets designed specifically for the EWS RO4 and RO4-UV systems.
• Protects against a broad spectrum of contaminants: chlorine, lead, arsenic, fluoride, nitrates, PFAS, VOCs, THMs, heavy metals, and more.
• RO4-UV option adds UV disinfection for bacteria, viruses, and cysts.
• Food- and beverage-grade components; fully compliant with California No-Lead Standards.
• Annual replacement ensures safe, great-tasting water directly at your tap.

Technical Specifications

*Filter and lamp life may vary depending on water quality and household usage.

Applications

• F.SET.RO4: Annual filter replacement for the EWS RO4 system.
• F.SET.RO4-UV: Annual filter + UV lamp replacement for the EWS RO4-UV system.
• Perfect for households that want pure, safe, and great-tasting water with minimal maintenance.

Model # F.SET.RO4 / F.SET.RO4-UV

Includes
F.SET.RO4: F-INLINE, F-GAC, F-MEM, F-GAC-B

F.SET.RO4-UV: F-INLINE, F-GAC, F-MEM, F-GAC-B, F-LAMP

Replace filters annually or as needed for reliable performance

5" Deep x 16" Tall x 16' Wide
Allow 4" Clearance at the bottom of the unit for filter replacement maintenance.