Description
This part is the Busch replacement sight glass. Its number is 83623.
The list includes popular Busch R5 series models (like the 0502B), Varian-Agilent Chemical Series, D Series, and MS MS40+ pumps, among many others. Always double-check your specific pump model from the list to be sure.
A clear, unscratched sight glass is important. If it gets cloudy or cracked, you can’t see inside. Replacing it with this original part ensures a perfect fit and a clear view.
It’s a small part that makes maintenance easy and smart.
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