... ) Safe operation pressure:3.1Mpa 4) Weight of molecular seive 25g Copper filter dry Copper filter ... dry are made of good quality copper pipes and copper thread backstops ... one or little one (white, yellow, red, blue, Green, different colors available) 3) 5GR, 7GR, 10GR, 12GR, 15GR, 20GR, ... 4) Words can be printed on the body of driers 5) Labels are also available for your ...