Device
designed to use a 6-in section of a standard 3-in diameter Shelby
tube. Ideal for testing loose sands and other materials that may
be difficult to transfer to a standard permeability cell. It comes
with anodized aluminium end caps, each fitted with a valve and
porous stones with "O" rings to provide a leak free seal.
Device
designed to use a 6-in section of a standard 3-in diameter Shelby
tube. Ideal for testing loose sands and other materials that may
be difficult to transfer to a standard permeability cell. It comes
with anodized aluminium end caps, each fitted with a valve and
porous stones with "O" rings to provide a leak free seal. 
