AquasureFortitude Compact Under Sink Water Filter
Inline under-sink carbon and KDF filter feeding the existing tap, with an annual twist-lock cartridge.
$50
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Usability
Usability
Fifty dollars is the cheapest entry in the entire Aquasure catalogue, and the design choice that earns it is feeding the existing tap rather than requiring a separate faucet and a hole drilled in the counter. That makes this a genuine thirty-minute installation for someone with no plumbing experience, which an RO system is not. Carbon plus KDF is the right media pairing for chlorine, taste, odour and some heavy metal reduction, and 2.6 GPM is enough that the tap does not feel throttled. What it will not do is remove dissolved solids, fluoride, nitrates or anything requiring a membrane, and the twelve-month, 10,000 gallon rating is optimistic for a cartridge this size on a busy kitchen tap. There is no certification of any kind behind the claims, in common with everything Aquasure sells. As the difference between chlorinated municipal water and pleasant drinking water at the lowest possible price and effort, it does the job.
- Feeds the existing kitchen tap, so no faucet hole or countertop drilling is required
- Twist-and-lock cartridge changes take seconds without tools
- 2.6 GPM stated flow, high enough that the tap does not feel restricted
- Twelve month or 10,000 gallon service interval, longer than the whole-house V2 cartridges
- Cheapest product in the Aquasure range
- No certification of any kind behind the chlorine or heavy metal claims
- Carbon and KDF only: no dissolved solids, fluoride or nitrate reduction
- 10,000 gallons is a modest capacity for a filter feeding the whole cold tap
- One year warranty
- Filters all cold tap water rather than a dedicated drinking line, so capacity is consumed by washing up
- No published micron rating for the cartridge
The Aquasure Fortitude Compact is a single-cartridge under-sink filter using a carbon and KDF media blend, connecting inline to an existing cold water supply with 1/2 inch to 3/8 inch quick-connect fittings. It feeds the existing kitchen tap rather than a separate faucet, at a stated flow of up to 2.6 GPM. Aquasure rates the cartridge at 10,000 gallons or twelve months and the replacement is AF-FC50-K, changed with a twist-and-lock action.
Additional information
Specification: Aquasure Fortitude Compact Under Sink Water Filter
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Questions answered from our data
What does Aquasure remove?Across the 30 Aquasure systems we list, the makers claim reduction of 25 contaminants.
How much does an under sink water filter cost?The 20 under sink water filters we list run from $50 to $499, with a median of $161.
Do water filters remove chlorine?217 of the 296 systems we list claim to reduce chlorine.
Do water filters remove sediment?121 of the 296 systems we list claim to reduce sediment.
