6-Quart Mainstays Oval Slow Cooker w/ Glass Lid (Stainless Steel) $19.98 + Free S&H w/ Walmart+ or $35+ Thumb Score: 0 Walmart [walmart.com] has 6-Quart Mainstays Oval Slow Cooker w/ Glass Lid (Stainless Steel) for $ 19.98. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $ 35+ Slickdeals Hot Deals Forum