Walmart offers the Pyrex 20-Piece Storage Plus Set in Red, model no. 1105412, for $19.84. Opt for in-store pickup to avoid the $4.97 shipping charge. That's tied with last month's mention and the lowest price we could find now by $10. It includes three 1-cup, three 2-cup, two 4-cup, one 7-cup, and one 11-cup round storage dishes with matching BPA-free lids.