Replacement Silicone Seal

Round Container – 480 ml
€ 4,95
Sale price  € 4,95 Regular price 

Replacement Silicone Seal

The one part that wears out. We'll sell you a new one, for as long as you own the product.

€ 4,95
Sale price  € 4,95 Regular price 

The steel will outlast you. The seal won't — and we'd rather tell you that than let you find out.

The silicone seal in your lid is the one part of a Stainless Co. product that eventually wears out. After a few years of dishwasher cycles it compresses, loses its spring, and stops sealing the way it did on day one. That isn't a defect. It's what silicone does.

So we sell you a new one. For a few euros, for as long as you own the product.

That is the whole difference between a container you replace and a container you keep.

Fits The Stainless Co. products only

Each seal is cut for one specific lid. Choose the size that matches the product you already own — a 480 ml seal will not fit a 1200 ml lid, and the bottle cap ring fits nothing else.

These seals are not compatible with containers, lunch boxes or bottles from other brands. Seal geometry is specific to the lid it was designed for, and we would rather you buy nothing than buy something that doesn't seal.

Two materials. Both named.

Everything we make is 304 food-grade stainless steel and one food-grade silicone seal. That is the entire list, across the whole range — lids and bottle caps included.

This is the second material. We named it on the page before you found it in the box, and we'll keep it in stock for as long as you own the thing it belongs to.

What's in the box

One food-grade silicone seal, sized for the product you select. Wondering why there is silicone in a steel container at all? Here is why we use a silicone seal.

Care instructions

Rinse before first use. Dishwasher safe on the top rack. For a deeper clean, remove the seal and rinse it separately, then let it dry fully before refitting. Replace it when it no longer springs back, or when the lid stops sealing the way it used to. For most people that is a few years of daily use.

Shipping and returns

Your order is carefully packed and shipped with tracked delivery, so you always know where it is. We aim to ship orders the same or next business day from our warehouse, ensuring fast and reliable delivery.

Rectangular stainless steel lunch box in everyday use

A system that covers everything. Without thinking about it.

Batch cooking on Sunday. Leftovers on Monday. A snack in your bag on Tuesday. The Pro Set is built around the way people actually use containers — not the way they imagine they will. Four sizes, one material, no compromises.

The material

Why stainless steel

Not a trend. A standard that's been trusted in professional kitchens for decades.

Non-reactive

Stainless steel doesn't interact with food or drink, no matter what you store or how long.

No coatings

No hidden layers, no inner liners, no materials you can't see or verify.

Doesn't degrade

It won't scratch, absorb smells, or break down over time the way plastic does.

Replace once

Buy it once and stop thinking about it. That's the whole point.

What people say

The switch, in their words

Not a trend. A standard that's been trusted in professional kitchens for decades.

"I didn't realise how much the plastic smell was bothering me until it was gone. These containers just feel clean."

— Lotte V., Amsterdam

"Bought the work bundle three months ago. Haven't thought about it since. That's exactly what I wanted."

— Daan R., Utrecht

"My kids use the lunchboxes daily. I pack them without any of that background worry about what touches their food."

— Marieke S., Rotterdam

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