Is it really leakproof?

Yes. The gasket and four latches form a watertight seal, so it is fine for soups and sauces in a lunch bag. Keep it upright anyway, since a knocked-open latch will spill.

Can it go in the microwave?

Yes, the container is microwave safe. Vent or loosen the lid when heating so steam can escape, and avoid very hot oil, which can warp plastic.

How much food does it hold?

About 8.3 cups, roughly two liters. That is enough for a family-sized batch of leftovers or several lunch portions.

Is it safe for the freezer and dishwasher?

Yes to both. Leave headroom for food to expand when freezing, and place the lid on the top rack.

Does it come as a set?

No, this is a single container with its lid. Matching Ultra-Seal sizes are sold separately if you want a uniform stack.

Is the plastic free of BPA?

Yes, it is BPA- and phthalate-free and rated food grade.

Where is the Sterilite Rectangle Ultra-Seal Container cheapest?

At Target, for $31.99, as of our latest check.

What do buyers say about the Sterilite Rectangle Ultra-Seal Container?

Rated 4.5 out of 5 from 72 ratings.

Where can I buy the Sterilite Rectangle Ultra-Seal Container?

3 stores we checked sell it, including Wayfair, Target, Macy's.

Sterilite Rectangle Ultra-Seal Container

Best price now

$31.99at TargetChecked 2 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Target

Sterilite Rectangle Ultra-Seal Container

Best price now

$31.99at TargetChecked 2 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Target

Ask our agent about this product

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

Price facts

Lowest price today: $31.99 at Target (checked Nov 11, 2026).
Checked at 3 stores.

Our take on the Sterilite Rectangle Ultra-Seal Container

The Sterilite Ultra-Seal Rectangle Container is a single 8.3-cup plastic food storage box with a four-latch lid and a watertight gasket seal. It is BPA- and phthalate-free, and it is safe for the microwave, freezer and dishwasher. The rectangular shape stacks neatly and holds more than a round tub of similar footprint, which suits batch cooking and leftovers. Against clip-lock glass containers it is lighter and cheaper to own, but it stains and can warp with very hot, oily foods. Owners rate it well for sealing and everyday storage.

Best forStoring leftovers and batch-cooked mealsFreezer portions and meal prepPacking dry goods and pantry staplesLighter, safer alternative to glass for lunch bags

Pros

Four latches and a gasket give a genuinely watertight seal
Rectangular footprint stacks and uses shelf space well
Microwave, freezer and dishwasher safe
BPA- and phthalate-free plastic
Lighter and less breakable than glass rivals

Cons

Plastic can stain and hold odors from tomato or curry
Not oven safe and can warp with very hot contents
Single container, no set or dividers
Lid gasket needs hand-cleaning to stay tight

Sterilite Rectangle Ultra-Seal Container prices at every store

WayfairNew
In stock
$31.99Checked 2 h ago
Visit Wayfair
TargetNew
In stock
$31.99Checked 2 h ago
Visit Target
Macy'sNew
In stock
$32.99Checked 2 h ago
Visit Macy's

Sterilite Rectangle Ultra-Seal Container price history

Lowest price we've seen: $31.99 on Nov 11 at Wayfair. Tracked across 3 stores since Nov 11.

What reviewers say

4.5 / 572 ratings

Buyers rate the container highly, mostly for the seal and the stackable rectangular shape. Complaints center on staining and odor retention with strongly colored foods.

What people mention

SealPraisedOwners say the latched lid keeps liquids in, even when the container is tipped in a bag.
StackingPraisedThe flat rectangular top lets containers stack and use shelf space better than round tubs.
StainingCriticisedTomato sauces and curry leave marks and odors that persist after washing.
Lid fitMixedSome find the latches stiff at first, though they loosen with use.
DurabilityMixedIt holds up in normal use, but very hot or oily food can warp the plastic.

About the Sterilite Rectangle Ultra-Seal Container

The Sterilite Rectangle Ultra-Seal Container is a plastic food storage container with a lid. It holds 8.3 cups. The lid closes with latches and forms a watertight, airtight seal.

The plastic is food grade, BPA free and phthalate free. The container is safe for the freezer, microwave and dishwasher. It is a single container with no dividers.

Material: Plastic
Capacity: 8.3 cups
Shape: Rectangle
Closure: Lid with latches
Seal: Watertight and airtight
Length: 9 1/8 inches
Width: 6 5/8 inches
Height: 3 1/2 inches
Safe for: Freezer, microwave, dishwasher
Free of: BPA and phthalates

Specifications

Leak Resistance: Watertight seal
Material: Plastic
BPA Free: Yes
Phthalate Free: Yes
Type: Food Storage Container
Freezer Safe: Yes
Microwave Safe: Yes
Dishwasher Safe

Questions and answers

Is it really leakproof?: Yes. The gasket and four latches form a watertight seal, so it is fine for soups and sauces in a lunch bag. Keep it upright anyway, since a knocked-open latch will spill.
Can it go in the microwave?: Yes, the container is microwave safe. Vent or loosen the lid when heating so steam can escape, and avoid very hot oil, which can warp plastic.
How much food does it hold?: About 8.3 cups, roughly two liters. That is enough for a family-sized batch of leftovers or several lunch portions.
Is it safe for the freezer and dishwasher?: Yes to both. Leave headroom for food to expand when freezing, and place the lid on the top rack.
Does it come as a set?: No, this is a single container with its lid. Matching Ultra-Seal sizes are sold separately if you want a uniform stack.
Is the plastic free of BPA?: Yes, it is BPA- and phthalate-free and rated food grade.
Where is the Sterilite Rectangle Ultra-Seal Container cheapest?: At Target, for $31.99, as of our latest check.
What do buyers say about the Sterilite Rectangle Ultra-Seal Container?: Rated 4.5 out of 5 from 72 ratings.
Where can I buy the Sterilite Rectangle Ultra-Seal Container?: 3 stores we checked sell it, including Wayfair, Target, Macy's.