Removing hard fuel lines - what to cap the exits with?

Anyone have a line on some kind of caps I can place on the 4 threaded fuel "exits" from the pump?
I need to remove the hard lines to do some remedial work on the glow plugs.

Like these red caps. Where can I find something like them?

vacuum plugs. They won't last long-term, but if it's a short project, they will last.

Thank you!! I just needed that particular phrase, now I find them everywhere heh.

plastic bag, some hair scrunchies or rubber bands. just cut the bag about into a 4x4" square and go at it. no need to buy things. Its just for the day or weekend, will work for a few weeks. Plastic bags will not degrade from diesel, the rubber bands will but it will take a bit and usually almost none drips out of the IP once its drained.

2 short pieces of fuel line equals 4 ends stuck on 4 nipples.