Description
Silicone rubber is very flexible, especially in cold conditions. It won’t get stiff or brittle when temperatures drop. This means it can always form a tight seal, no matter the weather in your shop or lab.
Using this specific part is important. It ensures the length and thickness are exactly right for your pump. A perfect fit means no gaps, no leaks, and no loss of vacuum power.
If your manual calls for part #48206600-420MM, this is the exact seal you need. It’s a Busch part for a guaranteed fit.
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