Global Water (GWRO) 4 Stage Reverse Osmosis Replacement Filters
4 Stage Reverse Osmosis Replacement Filters
Complete filter set for GWRO systems. Four stages of protection: sediment removal, activated carbon adsorption, reverse osmosis membrane filtration, and final carbon block polishing.
Four-stage filtration engineered for bottleless water systems
Stage 1: 5 Micron Sediment
Captures sand, rust, silt, and particulate matter from municipal supply lines before they reach finer filtration stages.
Stage 2: 1 Micron Granulated Carbon
Advanced activated carbon removes pesticides, insecticides, petrochemicals, MTBE, PCBs, defoliants, and benzene compounds.
Stage 3: Reverse Osmosis
RO membrane removes molecules smaller than water: dissolved salts, manganese, iron, fluoride, lead, and calcium.
Stage 4: 0.5 Micron Carbon Block
Final polishing stage removes 99% of lead and microbial cysts including giardia and cryptosporidium. Ensures zero chlorine taste or odor.
Designed for Global Water GWRO reverse osmosis systems
This filter set is engineered for Global Water GWRO 4-stage reverse osmosis systems, commonly installed with Blueline bottleless water coolers. Verify your system uses a 4-stage configuration before ordering. Not compatible with 5-stage or 6-stage GWRO models.
Replacement schedule for optimal performance
Stages 1, 2, 4
Replace sediment filter, granulated carbon filter, and carbon block filter annually to maintain flow rate and contaminant removal efficiency.
Stage 3: RO Membrane
Reverse osmosis membrane lasts 2-3 years depending on source water quality and daily usage volume. Monitor TDS levels to determine replacement timing.
Performance Indicators
Replace filters early if you notice reduced flow rate, change in taste, or increased TDS readings from your system.
OEM Specification
Global Water factory filters meet exact dimensional and performance specs for GWRO systems
Complete Set
All four stages included for annual maintenance of your reverse osmosis system
Bottleless Ready
Engineered for commercial bottleless water cooler installations in offices and facilities
