Target offers the Pur 2-Stage Water Pitcher Filter 3-Pack, model no. CRF-950Z-3, for $12.79. Opt for in-store pickup to dodge the $5.71 shipping fee. (Amazon charges the same with free shipping for Prime members.) That's the lowest price we could find by $7. These filters purport to reduce lead and contaminants and leave beneficial fluoride in the water.

Of note, Walmart offers it for pennies more with in-store pickup.