O2 – FAKRO Obscure glazing is standard level 4 obscurity.
A double glazed obscure unit with a frosted window effect. Glass construction from outside to inside is 4HO-Tg14Ar-33.1T. The outer pane has a 4mm toughened ornamental and obscure glass and a 14mm warm TGI Spacer filled with inert argon gas. You will also find a 6.4mm internal laminated pane with a low emission coating.