A 12cm or 5 inch (approximate aperture size), opening portlight with a deep spigot made in a classic style using traditional methods to shipping industry standards.
A 20cm or 8 inch (approximate aperture size), 2 key opening porthole made with a deep spigot in a classic style using traditional methods to shipping industry standards.
A 15cm or 6 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.
A 14cm or 6 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.
A 13in 34cm Oval 2 key opening porthole made in a classic style, using traditional methods, to shipping industry standards.
A 18cm or 7 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.
A 24cm or 10 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.
A 30.5cm or 12 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.
A 40cm or 16 inch (approximate aperture size), opening portlight made from high grade gun-metal, in a classic style using traditional methods, to high marine industry standards.