Water filter Systems Comparison Chart

Ten household water treatment types compared on cost, maintenance, what each removes and who it suits. Prices are typical Canadian ranges and move with the market.

System Typical cost Filter change What it reduces Best for
Pitcher / dispenser $30–60 1–2 months Chlorine, taste, odour. Some models lead. Renters, 1–3 people, taste complaints
Faucet mount $40–90 2–3 months Chlorine, taste, sediment. Some lead-rated. No plumbing work, filtering on demand
Countertop $120–400 6 months Chlorine, VOCs, often lead and cysts Higher volume without altering cabinets
Under-sink carbon $200–450 6–12 months Chlorine, VOCs, lead, cysts (NSF 53) Best all-round choice for most homes
Reverse osmosis $250–600 Pre-filters 6–12 mo; membrane 2–3 yr Broadest: nitrates, arsenic, fluoride, TDS Well water, high dissolved solids
Whole house $1,000–3,000 3–12 months Chlorine and sediment at every tap Whole-home chlorine, shower and laundry
Shower filter $40–130 6 months Chlorine at the shower head Skin and hair sensitivity
Refrigerator $40–80 6 months Chlorine, taste, some lead Fridge dispenser and ice
Water softener $500–2,000 Salt top-ups Hardness only — not a filter Scale, poor lather, appliance protection
UV disinfection $300–800 Lamp annually Bacteria, viruses, protozoa Private wells with a bacterial result

Costs exclude installation. Under-sink and whole-house systems may need a plumber.

Reading the table

Purchase price is not the number that matters. Cartridge spend usually overtakes it within two or three years. A $40 pitcher taking $60 of filters a year costs more over five years than a $300 under-sink system taking $70 a year.

What a filter removes depends on certification, not category. Two under-sink filters at the same price can differ enormously. NSF/ANSI 42 covers taste and chlorine. NSF/ANSI 53 covers health effects including lead. NSF/ANSI 58 covers reverse osmosis. If the box names no standard, assume taste only.

Softeners and UV are not filters. They are here because people shop for them in the same breath, but a softener does nothing for taste or contaminants, and UV removes nothing physically.

Start with your water, not the table

On municipal supply, read your city’s annual water quality report — it is free and states chlorine levels, hardness and whether lead service lines exist in your area. On a private well, test before buying anything.

Our full buying guide →  ·  NSF 53 certified filters on Amazon.ca →

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