Built-in refrigerator water filters became a common household feature in the late 1980s and early 1990s as automatic ice makers and cold-water dispensers grew in popularity. These systems were ...

Refrigerator water filters turn tasteless water into a refreshing, thirst-quenching beverage. They’re effective at removing contaminants, many of which affect water flavor or are harmful to drink.

Dryers that don’t dry, vacuum cleaners that don’t clean, and air conditioners that don’t cool might be plagued by the same problem: a clogged or dirty filter. To keep many appliances in tip-top shape, ...