Available in Canada — no duties or brokerage
Replacement cartridges for Aquasana 3-stage under-sink systems are stocked on Amazon.ca. Buying through Amazon.ca ships domestically, so you avoid the cross-border duties and carrier brokerage fees that apply to orders from Aquasana’s US site.
This model has been discontinued
Aquasana no longer sells the AQ-4025 replacement filters. Its current replacement is the Claryum replacement filters.
Price on this page when written: $59.99 → Claryum replacement filters: see current (checked August 2026 — see live price)
Shipping to Canada is not free. Orders are sent from the US and may attract provincial duties, taxes and carrier brokerage fees payable on delivery.
Shipping is calculated at checkout
From Aquasana
Replacement Filters for Aquasana Drinking Water Filters
Model # AQ-4025
Regular Price $59.99
Filters last 6 months/500 gallons.
Filters out lead, chlorine, VOCs, MTBE and chlorine resistant parasites/cysts.
Sub micron filtration.