1) Copper construction 2) Size 25*0.45*135 3) Safe operation pressure:3.0Mpa 4) Weight of molecular seive 30g Copper filter ... little one (white, yellow, red, blue, Green, different colors available) 3) 5GR, 7GR, 10GR, 12GR, 15GR, 20GR, 25GR, 30GR, 40GR, 50GR ... according to your drawing or sample Other Photos KLD-002 Complete production processof copper filter drier