75 GPD Complete Reverse Osmosis Replacement Filter Set For Under Sink 5-Stage RO Systems
Universal 10-inch cartridge set designed to restore full filtration performance across all five stages of your under-sink reverse osmosis system
Five stages working together to remove what matters
Stage 1: Sediment Pre-Filter
5 micron polypropylene sediment filter captures rust, sand, silt, and larger particles before they reach the membrane, extending system life and protecting downstream filters
Stage 2: GAC Carbon Filter
Granular activated carbon removes chlorine, volatile organic compounds, bad taste and odor while protecting the RO membrane from chlorine damage
Stage 3: Carbon Block Filter
Dense carbon block provides secondary protection, capturing smaller particles and additional chemicals missed by the GAC stage before water reaches the membrane
Stage 4: 75 GPD RO Membrane
The heart of the system removes up to 99% of dissolved solids, heavy metals, fluoride, arsenic, nitrates, and bacteria through reverse osmosis filtration
Stage 5: Inline Carbon Polish
Final coconut shell carbon filter with built-in 1/4 inch quick connects removes any residual taste or odor from storage tank, ensuring clean-tasting water at the faucet
Fits most standard 10-inch under-sink RO systems
This universal replacement set works with Express Water, iSpring RCC7, APEC ROES-50, Watts Premier, Global Water, Flowmatic, PuROLine, Crystal Quest, Puromax, and most other standard 5-stage or 6-stage reverse osmosis systems using 10-inch cartridges and 1810 membrane housings. Each cartridge is individually wrapped for clean installation.
Replace on schedule to maintain performance
Sediment, GAC & Carbon Block Filters
Replace stages 1, 2, and 3 every six months or when you notice pressure drop or taste changes. High sediment water may require more frequent changes.
Inline Carbon Post-Filter
Replace the stage 5 inline carbon filter annually to maintain water taste and odor control from the storage tank to your faucet.
75 GPD RO Membrane
Replace the reverse osmosis membrane every two years under normal conditions. Test TDS levels regularly. If TDS rises above 10% of source water, replace sooner.
Drop-In Design
Tool-free cartridge replacement in minutes with quick-connect fittings on the inline filter
Complete Set
All five stages included so you restore full system performance in one order
Multi-Purpose Water
Cleaner water for drinking, cooking, coffee, aquariums, and hydroponic gardens
99% Reduction
Removes dissolved solids, chlorine, fluoride, heavy metals, and hundreds of contaminants
