Replacement Filters for the HydroLogic Stealth RO100 (3-Stage) Reverse Osmosis System
HydroLogic · 3-Stage Reverse Osmosis
Replacement Filters for the HydroLogic Stealth RO100 (3-Stage) Reverse Osmosis System
Every filter your system needs — stage by stage — led by the IPW house-brand set that costs less than the OEM parts.
Also sold as: HydroLogic Stealth RO100 · HydroLogic RO100 · RO100 · Stealth RO100
✓ Best value — replace everything at once
HydroLogic RO100 3-filter pack — best value
$37.00
5µm sediment + 5µm carbon block (both 10" × 2.5") + 100 GPD RO membrane. Fits the HydroLogic Stealth RO100.
🛒 Add the complete set to cartFilters by stage
Buy the whole set above, or replace stages individually below.
1
Sediment pre-filter
5µm melt-blown · 10" × 2.5"
IPW 5M-SED-10×2.5 — 5µm sediment — $3.50
Original part: Hydro-Logic HL22125 (pleated, cleanable). Prefer pleated? SC-10PT-5 pleated 5µm — $5.99
2
Carbon block
Coconut carbon block · 10" × 2.5"
Original part: Hydro-Logic HL22110 green coconut carbon. Direct match: IPW FX10CL2 (10µm green coconut) — $14.68
3
RO membrane
100 GPD thin-film composite · 1 membrane
Original part: Hydro-Logic HL22120 (Stealth-RO100 membrane)
When to replace
🪣 Sediment: clean often, replace yearly🧱 Carbon: about every 1,250 gallons💧 RO membrane: 6 months to 2 years
✓ Fits the HydroLogic Stealth RO100 with 10" × 2.5" pre-filters and one 100 GPD membrane — not sure? call (714) 541-6600.
Not sure this is your system? Use the Isopure Water Filter Finder → Match by system name, by the part number printed on your current filter, or by snapping a photo.
HydroLogic Stealth RO100 filter FAQ
What filters does the HydroLogic Stealth RO100 use?
Three: a 10" × 2.5" sediment pre-filter (OEM HL22125, pleated), a 10" × 2.5" carbon block (OEM HL22110 green coconut) and a 100 GPD RO membrane (OEM HL22120). The RO100 three-filter pack has all three.
How often should I change the Stealth RO100 filters?
HydroLogic rates the green coconut carbon filter at about 1,250 gallons. Clean the pleated sediment filter often and replace it about once a year. The membrane lasts 6 months to 2 years. Replace it when output drops or TDS rises.
Do the RO100 and RO150 use the same pre-filters?
Yes. Both use the same 10" × 2.5" sediment and carbon filters. The membranes differ: the RO100 uses HL22120 and the RO150 uses HL22121.
Which carbon filter should I use if my water has chloramine?
Use the HydroLogic ChloraShield carbon filter in place of the standard green coconut block. Call (714) 541-6600 and we will help you pick.
All replacement filters by system · HydroLogic Stealth RO150 · HydroLogic Stealth-RO 200 · HydroLogic smallBoy
Compatibility reference only. Photos of complete systems shown on this page are provided to help you identify your unit and confirm that our filters fit. All brand names, model numbers, and product images are the property of their respective owners; Isopure Water (IPW Industries Inc.) is not affiliated with, sponsored by, or endorsed by these manufacturers. We sell compatible replacement filters and parts — not the branded systems pictured, unless a system is separately listed for sale on our store.
