Little blue ballast-filler thingy

Anybody know where to pick up those blue fittings that come with fat sac pumps? Also, where do you buy extra plugs and caps?

you can get all that stuff from a store that sells waterbeds.

You can also get a waterbed fill kit at Walmart for about $5 that has one of the blue tips in it. No plug or cap though.

My local walmart doesn't carry caps, i looked. I used a threaded pvc cap for 1" sprinkler pipe that I had layin around in my garage, it'll snug onto the bag tight enough not to fall off. I think it was 1". I dont know bout the blue thing though.