Newegg offers the Rosewill 4-Liter Water Boiler and Warmer
, model no. R-HAP-01, for $37.49. Coupon code "SD224TWENTY" cuts the price to $29.99
. With free shipping
, that's tied with our July mention and the lowest total price we could find by $15. It features four temperature settings, an auto-clean setting, and 360° rotatable base.