A refrigerator water filter can turn your plain-old H~2~O into a bottle-like indulgence. Filters work to remove impurities found in tap water, such as lead, pesticides and nitrates, and make water taste better, too. Here’s what to look for in a refrigerator water filter.

Lasts Up to Six Months

Certified to reduce 99% of lead, as well as other contaminants, for up to 200 gallons. EveryDrop by Whirlpool

A water filter may look intimidating, but the install is relatively seamless. The first step is to know the make and model of your fridge. You’ll need to do some initial research to ensure that the filter is compatible with your fridge model. Once you’ve done so, follow instructions for a seamless install. You also may need to reset the reminder light on your fridge for a filter change — most filters require you to change them every six months or so.

No Tools Required

Reduces five trace pharmaceuticals and operates between 25-120 PSI. GE

A water filter needs to be replaced according to the directions. Filters generally last for a certain number of gallons, which the instruction manual may estimate into a certain number of months. Once you move past the set amount of gallons, the filtration system is likely to not be as effective as it was before.

Prime this option by running under a faucet for three minutes before installation. FRIGIDAIRE

No filter eliminates all contaminants, so it’s important to assess which ones are being removed. Many filters on the market are certified by different organizations. One is NSF, a public health and safety organization. The NSF has a database of water filters they’ve certified. You also may want to check with your pediatrician or dentist on whether your child needs a fluoride supplement in conjunction with the filter, since some filters also remove fluoride.