Amazon has the Sistema KLIP IT Rectangular Collection Food Storage Container 236 Oz Only $9.99 + Free Shipping w/Prime

Extra-large food storage container ideal for a variety of foods and ingredients Lid with easy-locking clips and extended flexible seal helps keep food fresher for longer Modular stacking design and rectangular shape helps save valuable space 100% virgin plastic; phthalate- and BPA-free Top-rack dishwasher-safe; fridge- and freezer-safe; microwave-safe without lid

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