Best Whole-House Water Filters Under $400 Ranked

A low cost starter system for chlorinated city water in a small home.

A low cost first whole-house filter for city water with chlorine taste. Expect to change filters several times a year.

A lower priced three stage big blue system for city water. Running cost is hard to judge without a gallon rating.

A sensible upgrade on the WGB21B for a family on chlorinated city water, with filters that last longer and cost little per gallon.

A single filter for chlorine taste with a built in leak detector and shutoff. Worth it if the leak protection is what you want.

A bare bones single filter housing for sediment and chlorine taste at the lowest price. It suits small budgets and light use.

A high flow two stage system for chlorinated city water with some grit. Pick a catalytic carbon model if your city uses chloramine.

For homes worried about lead pipes or with chloramine treated water. The lead claim is not certified, so test the water if lead is the main concern.

A cheap big housing for sediment and chlorine taste on city water. Filter costs add up because each one lasts only three months.

A cartridge system built for chloramine treated city water, with a longer warranty than most at this price.

For a smaller home where PFAS in the water is the main worry. Its low flow rating suits one or two bathrooms.

A certified, maintenance light tank for a small or medium home on chlorinated city water.