Deal Outlets via Amazon offers Amazon Prime members the Clear2O Water Pitcher Filter 3-Pack
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's $3.06 per filter and the lowest total price we could find for this quantity by $19. Each filter cleans 50 gallons (88 pitchers) and can be used with a Clear2O Water Pitcher.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.