Pressure relief grille ssga 525 x 325

Dimensions and technical details Pressure relief grille for installation on doors Housing colour: natural aluminium Housing material: anodised aluminium Outer dimensions: 525 x 325 mm Door cut-out: 520 x 305 mm Door thickness: 36 – 60 mm Volume flow at 5 Pa: 255 m³/h Volume flow at 15 Pa: 450 m³/h Immovable blinds prevent view from the other side Installation: fitted with clamp springs Can be installed on walls by leaving out the counter frame