Are these containers really airtight?

They use locking lids with a seal to keep air out. As with most plastic sets, the seal holds best when the lid is pressed down evenly on all sides.

Can I put them in the dishwasher?

No. The maker recommends hand washing to keep the plastic and seals in good condition.

Each container holds 4 liters, about 135 ounces. That is enough for a large bag of flour, rice or cereal.

Yes. The plastic is BPA-free and described as food safe and reusable.

The lids are described as leakproof, so they can hold soups or sauces, but keep them upright since a bumped latch can open.

They are large bins, so measure your shelf height and depth first. Their square shape stacks to use vertical space.

At GlobalPrep Kitchen, for $72.48, as of our latest check.

$72.48at GlobalPrep KitchenChecked Nov 9

Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.