5 Stage Elementary RO/DI Complete Replacement Kit
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5-Stage RO/DI Complete Replacement Filter Kit
Compatible with LiquaGen 5-Stage Elementary RO/DI Systems
This complete replacement filter kit is designed for the LiquaGen 5-Stage Elementary RO/DI system and is also compatible with most RO/DI brands that use industry-standard 10" filter cartridges.
It provides a cost-effective solution for replacing all primary filtration components at once, restoring system performance, water purity, and flow efficiency.
Important Membrane Compatibility Note
All RO membranes rated at 75 GPD,150 GPD, and 200 GPD fit the same membrane housing.
If you are upgrading your system’s production capacity, you may upgrade the membrane size without changing the housing.
However, the flow restrictor must match the membrane size to ensure optimal performance, proper rejection rates, and membrane longevity.
What’s Included in the Box
Polypropylene Sediment Filter – 5 Micron
Removes dirt, sand, rust, and suspended particles
Recommended replacement: every 6–12 months
UDF / GAC Carbon Filter
Reduces chlorine, chloramine, and organic contaminants
Recommended replacement: every 6–12 months
Coconut Shell Carbon Block Filter
Provides deeper chlorine removal, improves taste and odor
Recommended replacement: every 6–12 months
High-Rejection Reverse Osmosis Membrane
Available options: 75 GPD, 150 GPD, 200 GPD
Recommended replacement: every 2–4 years (depending on water quality and usage)
Inline Mixed Bed Color Changing DI Cartridge
Polishes RO water by removing remaining dissolved solids (TDS)
Food-Grade NSF Lubricant Jelly
For safe and easy O-ring installation
Fixed Elbow Fittings (2-Pack) + Teflon Tape
For secure, leak-free connections during installation
Key Benefits
Complete all-in-one replacement kit
Restores system performance and water quality
Compatible with LiquaGen and most standard RO/DI systems
Easy installation with included fittings and lubricant
Ideal for aquariums, reef systems, hydroponics, and spot-free applications
Replacement Schedule Summary
Sediment & carbon filters: 6–12 months
RO membrane: 2–4 years
DI cartridge: replace as TDS increases
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