OXA Fashion via Amazon offers its OXA 2.5-Liter Alkaline Water Filter Pitcher with two Longevity Filters for $29.99. Coupon code "4ZAHFWJQ" cuts it to $23.99. Plus, Prime members bag free shipping. That's $16 off and the lowest price we could find. It's BPA free and helps filter out chlorine, lead, copper, and other contaminants.