1 Stock number stamps contain movable bands with the numbers 0 - 9. 2  Choose between a sturdy metal core frame or sleek, economical plastic frame number stamp.
The channel has a large diameter of 0.8x1.1nm, and is non-selective for small ions. However, it has an upper exclusion size limit corresponding to molecular weights of about 600 Dalton of permeants. Because most metabolites have molecular weights lower than 600 Da and have been shown to pass through porin channels, porins are called general diffusion pores.
Channel Master Smartenna. The Smartenna is larger than most indoor types, and is even larger than Channel Master's own DVR product. It measures 13 inches wide by 11 inches high and 1.5 inches thick, and at 1.5 pounds it's also the heaviest antenna here.