Haron DRV6003 Aluminium Door Relief Vents,635 x 335mm

  • Facing Size: 635 x 335mm
  • Width 38mm
  • Hole Size for Hollow Doors: 603 x 303mm
  • Hole Size for Solid Doors: 603 x 312mm
  • Air Flow 600 ~ 4000 m3/h
  • Snap In Fitting
  • Anodised Aluminium
  • Double Sided