Description
This O-ring is made from FKM, a special, heavy-duty material. It creates a perfect, airtight seal in your vacuum pump. It handles oil and heat much better than standard rubber.
O-rings are simple rings that fit between two parts. When tightened, they squeeze to form a tight seal. This keeps the air out and the vacuum strong.
But this is not a standard rubber O-ring. It is made from FKM. This material is also known as Viton. Think of it as a super-tough rubber.

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