I used a Hersheys chocolate container (for chocolate milk).
Put the top and bottom off a underseat air filter on it and put it where the old underseat filter use to live.
Perfect fit and it don't rattle around.
plus it holds about twice what our old tank holds.
Nah, sure don't know if it was home made or a manufactured item. Would like to know if the R3 has cooling problems, or if it overheats and boils over in hot weather.
even though the rocket is a heat monster, no overheating problems. For me, I would like to replace the ugly puke tank and put something shiney in its' place.
Like Regulator, I put mine behind the left side pannel & did 2 of my mates rockets the same. Real easy mod, just swap the long & short hoses around. It fits easily & can be locked in place with a plastic tie.