Pump tubing replacement

Hello, the tubing on one of my pumps tore (see pic) and I’m wondering how to go about replacing. First, what are the specs on the tubing so I can order a replacement? Second, what is the best way to disassemble the pump?

Thanks in advance.

The tubing is 2mm inner diameter x 4mm outer diameter BPT.

Here’s a couple of possible options to buy some: option1 option2.

To replace the tubing, twist the pump head until it unclicks, then pull it off. You can then remove the broken tube, cut a new tube of the same length, and add the connectors from the old tube back.

Best of luck!