material : PU
aquarium co2 system special air tubing，connect to your co2 device.
there are 5 kinds of length for choose.
compression resistance in normal temperature condition : 12kg/cm2
operating pressure limit : 13kg/cm2
exp losion pressure : 28kg/cm2
operating temperature -40-80 centigrade
resistance to oils with no erosive nature
stretch resistance : 400kg/cm2
tearing strength : 110kg/cm2
anti-abrasion : 35mg
high fiexibility :
strong restoring force，no deformation with crippling