Amazon offers Prime members the Ovente Electric 1.5-Liter Glass Kettle in Black, model no. KG83B, for $18.45 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.20.) That's $2 under our mention from last month and the lowest total price we've seen. (It's also a current best by $5.) This 1,100-watt kettle features automatic shutoff, a non-slip power base, water level gauge, and washable filter.