5-Stage RO/DI Replacement Kit (Stages 1–3 & 5) – No Membrane

5-Stage RO/DI Replacement Kit (Stages 1–3 & 5) – No RO Membrane

Compatible with LiquaGen 5-Stage RO/DI Systems

The LiquaGen 5-Stage RO/DI Replacement Kit is designed to restore filtration performance in LiquaGen 5-Stage RO/DI systems. This kit replaces Stages 1, 2, 3, and 5, delivering clean, purified water while protecting your RO membrane and DI resin efficiency.

This replacement kit does not include the RO membrane, which typically only requires replacement every 2–3 years depending on water quality and usage.

What’s Included in the Box

• Stage 1: 5-Micron Sediment Filter

• Stage 2: Granular Activated Carbon (GAC) Filter

• Stage 3: Coconut Shell Carbon Block Filter

• Stage 5: Mixed Bed Color-Changing DI Resin

• 2 × Elbow Fittings (for easy installation)

Filtration Stages Explained

Stage 1 – 5 Micron Sediment Filter

Removes dirt, sand, rust, silt, and suspended particles from incoming water.
This stage protects downstream carbon filters and the RO membrane from clogging and pressure loss.

Stage 2 – Granular Activated Carbon (GAC)

Reduces chlorine, chloramine, and organic contaminants.
Helps protect the carbon block and RO membrane while improving overall water quality.

Stage 3 – Coconut Shell Carbon Block

Provides deeper chlorine and chemical reduction using high-density coconut shell carbon.
Improves taste, odor, and VOC removal while ensuring maximum membrane protection.

Stage 5 – Mixed Bed Color-Changing DI Resin

Polishes RO water to ultra-pure quality by removing remaining dissolved solids (TDS).
Color-changing resin provides a visual indicator for replacement, making maintenance simple and accurate.

RO Membrane Information

• RO membrane not included

• RO membranes typically last 2–3 years

• Replacing pre-filters and DI resin regularly helps extend membrane life and maintain system efficiency

Key Benefits

• Designed for LiquaGen 5-Stage RO/DI Systems

• Protects RO Membrane by removing sediment and chlorine upstream

• Restores Water Quality and system performance

• Color-Changing DI Resin for easy monitoring

• Easy Installation with included elbow fittings

• Ideal for Aquariums, Reef Systems, Hydroponics, and Spot-Free Applications

Compatibility

• Compatible with LiquaGen 5-Stage RO/DI systems

• Standard 10" filter housings

• Designed for systems using mixed bed DI resin as the final stage

Maintenance Recommendation

• Sediment & carbon filters: replace every 6–12 months

• DI resin: replace when color change indicates exhaustion

• RO membrane: replace every 2–3 years, depending on water quality