They are completely free from oxidation. Sturdy, walkable and watertight. Overcoming the leak test at 14KPa.
Available in a black or white finish.
05-2533250 (Black) 05-2533250-W (White):
Exterior – 250mm | Interior – 175mm | Cut Out – 200mm
05-2533300 (Black) 05-2533300-W (White):
Exterior – 300mm | Interior – 225mm | Cut Out – 250mm
05-2533350 (Black) 05-2533350-W (White):
Exterior – 350mm | Interior – 275mm | Cut Out – 300mm