prime metal and scientific Clear Acrylic Tubes - Rigid 3/8" OD x 1/4" ID x 12" Long - Pack of 6 - Extruded Acrylic Round Tubes/Pipes (1/8" wall thickness) is up for auction in Industrial & Scientific. The current bid is $1.00, 94% below the $17.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.