- 20" OD, .25" wall thickness (19' lengths) $250 each - 8.625" outer diameter, 21 x .33" wall thickness (15' lengths ) $120 each - 11.75" outer diameter, 16 x .33" wall thickness (15' lengths) $150 each - 12.75" outer diameter, 12 x .50" wall thickness (14' lengths) $180 each - 6.65" outer diameter, 8 x .33" wall thickness (15' lengths) $100 each