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Internal 340mm / External 235mm 1

Internal 275mm / 10mm Land / 275mm / External 235mm / 10mm Land / 235mm 1

Equivalent Area (mm²)

Airborne Sound Insulation (dB)

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RW Simon

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RW Simon Framevent Trickle Ventilator

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Filtering By

Length 400mm
400mm
Slot Length 260mm
260mm

Colour

Height

Length

Slot Height

Internal 13mm / External 16mm

Slot Length

230mm / 10mm Land / 230mm

275mm / 10mm Land / 275mm 2

Internal 340mm / External 235mm 1

Internal 275mm / 10mm Land / 275mm / External 235mm / 10mm Land / 235mm 1

Equivalent Area (mm²)

Airborne Sound Insulation (dB)

M.E. Duffell LimitedUnits 3 Commerce Park19 Commerce WayCroydonCR0 4YL

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