Walmart offers the Crock-Pot 4-Quart Slow Cooker in Black, model no. SCR400-B, for $13.88. Opt for in-store pickup to avoid the $5.97 shipping fee. That's the lowest price we could find by $14 and the best we've seen since Black Friday, when it was $5 less. It features a dishwasher-safe, removable stoneware crock, high and low cooking settings, and a glass lid.