are they all the same thread, or if you buy eg a finish line or exustar one do you have to buy their grease?

Want one that will fit on the Park polylube tubes.

thanks in advance

I’ve mixed and matched a couple of grease guns and a few tubes of grease: they all seem the same thread to me and work fine. Well, except my example of that grease gun with the long transparent green nozzle (sold under a few brands iirc) is a bit rubbish.

more importantly does anyone make a refillable tube that fits?

I wa contemplating warming up a can of grease and funneling it into the empty tubes. Bust suspect grease melts at quite high teperatures and the pastic will probably melt!

Cut the end off an old tube, then use wire to roll up and close (think like a dry-bag or roll top pannier) when you have refilled it. Not pretty but would probably work.

http://www.leisurelakesbikes.com/product/pacerc7greasegun.aspx?&id=1091

refillable