I was a little surprised at the pump head rebuild kits for my two chemical metering pumps in the lab. They were $662 each. I don’t know what I was expecting given the small size of the pump heads. It just seems like a lot of money. These are ProMinent pumps and have always given good service. I guess I am not calibrated correctly.

The metering pumps feed a Mettler-Toledo instrument, so I should be used to expensive parts. Everything from Mettler seems to be priced in multiples of $2500 and is shipped on a crippled barge from Europe. Just kidding. Mettler makes good equipment but they are a bit on the slow side.