Replacement Filters for the HydroLogic smallBoy (2-Stage Dechlorinator) Reverse Osmosis System
HydroLogic · Reverse Osmosis
Replacement Filters for the HydroLogic smallBoy (2-Stage Dechlorinator) Reverse Osmosis System
Every filter your system needs — stage by stage — using IPW / PureT cartridges that fit and cost less than the OEM parts.
Also sold as: HydroLogic smallBoy · smallBoy · small boy · HL dechlorinator
✓ Genuine-fit replacement filters
HydroLogic smallBoy (2-Stage Dechlorinator) Replacement Filters
Replace each stage below with the exact IPW / PureT part — a fraction of OEM cost.
Filters by stage
Replace each stage with the exact part below.
2
Green coconut carbon
coconut carbon block · 10×2.5 (dechlorinator)
Optional KDF85/catalytic upgrade for chloramine/well water (HydroLogic 10×3 — order genuine if your housing takes the fat 3" cart).
When to replace
🪣 Sediment & carbon: every 6–12 months💧 RO membrane: every 2–3 years
✓ Guaranteed to fit your HydroLogic smallBoy (2-Stage Dechlorinator).
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.
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.
