bdroppeddak
+1y
assuming you are talking about those small tanks people use to give an air cylinder alot more volume to soften the ride, my first suggestion would be buy some small air tanks, or a tank thats made to be an "air expansion tank", or if you wanted to fabricate one, buy some sch 40 pipe of whatever size you wanted the tanks to be, and cap it off, then buy weld in bungs with npt threads and put them where you want....