You can get Borosilicate Glass tubing at McMaster-Carr for like $14 a foot and its the best to use for making tanks, it's pretty easy to cut and polish the edges if ya take your time, here's the Stock #'s =
3/4" 1/2" 8729K43 11.85
3/4" 0.62" 8729K45 8.89
0.88" 0.62" 8729K47 13.93
1" 0.69" 8729K49 19.43
1" 0.82" 8729K51 12.0
3/4" 1/2" 8729K43 11.85
3/4" 0.62" 8729K45 8.89
0.88" 0.62" 8729K47 13.93
1" 0.69" 8729K49 19.43
1" 0.82" 8729K51 12.0
