Walmart.com has the 32oz Slime 2-in-1 Tire & Tube Premium Sealant for $5.15 with free in-store pickup.

amazon.com also has the 32oz Slime 2-in-1 Tire & Tube Premium Sealant for $5.15 with free shipping on orders of $25+ or with Prime. In stock soon but can still be ordered.