1/4 in 1/2 in

Freddox HSG sight glasses are moisture and liquid indicators determining the state of the refrigerant and the filter drier for commercial refrigeration, industrial refrigeration and air conditioning installation. They are manufactured in a sealed hermetic unit with their lens housed inside the brass body to avoid any possible refrigerant leaks. Freddox sight glasses are suitable with main refrigerants as HCFC, HFC, HFO and HFO/HFC mixtures, and HC up to 45 bar. They are available with brazed or flare connexions from 1/4” (6mm) to 1”1/8 (28mm).