Moisture trap with indicator for He, N2, H2, Ar, and Air carrier gases. 6g water capacity, changes from yellowish green to blue when saturated. Uses 1/8" brass fittings, pre-purged for fast stabilization. Reduces water to < 10ppb. Heavy-walled glass body prevents oxygen and water infusion. 10 µm frit prevents microparticulate damage to needle valves and flow controllers. Maximum operating pressure: 160 psi (1103 kPa). Maximum flow: 1L/minute.