OXA Home via Amazon offers the Oxa 2.5-Liter Alkaline Water Filter Pitcher with Two Long-Life Smart Filter Cartridges in White or Blue for $19.99. Coupon code "VGWCSQMS" cuts the price to $14.99. With free shipping for Prime members, that's $2 under our November mention, $25 off, and the lowest price we could find. This BPA-free pitcher helps filter out chlorine, lead, copper, and other contaminants to produce water with a pH of 8.5 to 10. Deal ends January 31.